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RetroArch/gfx/drivers/gl.c
twinaphex 696fa900a1 Refactor macro functions which were unsafe
2018-02-26 18:08:17 +01:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2012-2015 - Michael Lelli
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef _MSC_VER
#pragma comment(lib, "opengl32")
#endif
#include <stdio.h>
#include <stdint.h>
#include <math.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <compat/strl.h>
#include <gfx/scaler/scaler.h>
#include <gfx/math/matrix_4x4.h>
#include <formats/image.h>
#include <retro_inline.h>
#include <retro_miscellaneous.h>
#include <retro_math.h>
#include <string/stdstring.h>
#include <libretro.h>
#include <gfx/gl_capabilities.h>
#include <gfx/video_frame.h>
#include <glsym/glsym.h>
#include "../../configuration.h"
#include "../../dynamic.h"
#include "../../record/record_driver.h"
#include "../../retroarch.h"
#include "../../verbosity.h"
#include "../common/gl_common.h"
#ifdef HAVE_THREADS
#include "../video_thread_wrapper.h"
#endif
#include "../font_driver.h"
#ifdef HAVE_GLSL
#include "../drivers_shader/shader_glsl.h"
#endif
#ifdef GL_DEBUG
#include <lists/string_list.h>
#if defined(HAVE_OPENGLES2) || defined(HAVE_OPENGLES3) || defined(HAVE_OPENGLES_3_1) || defined(HAVE_OPENGLES_3_2)
#define HAVE_GL_DEBUG_ES
#endif
#endif
#ifdef HAVE_MENU
#include "../../menu/menu_driver.h"
#endif
#ifndef GL_UNSIGNED_INT_8_8_8_8_REV
#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
#endif
#define set_texture_coords(coords, xamt, yamt) \
coords[2] = xamt; \
coords[6] = xamt; \
coords[5] = yamt; \
coords[7] = yamt
static struct video_ortho default_ortho = {0, 1, 0, 1, -1, 1};
/* Used for the last pass when rendering to the back buffer. */
static const GLfloat vertexes_flipped[] = {
0, 1,
1, 1,
0, 0,
1, 0
};
/* Used when rendering to an FBO.
* Texture coords have to be aligned
* with vertex coordinates. */
static const GLfloat vertexes[] = {
0, 0,
1, 0,
0, 1,
1, 1
};
static const GLfloat tex_coords[] = {
0, 0,
1, 0,
0, 1,
1, 1
};
static const GLfloat white_color[] = {
1, 1, 1, 1,
1, 1, 1, 1,
1, 1, 1, 1,
1, 1, 1, 1,
};
static bool gl_shared_context_use = false;
void context_bind_hw_render(bool enable)
{
if (gl_shared_context_use)
video_context_driver_bind_hw_render(&enable);
}
#ifdef HAVE_OVERLAY
static void gl_free_overlay(gl_t *gl)
{
glDeleteTextures(gl->overlays, gl->overlay_tex);
free(gl->overlay_tex);
free(gl->overlay_vertex_coord);
free(gl->overlay_tex_coord);
free(gl->overlay_color_coord);
gl->overlay_tex = NULL;
gl->overlay_vertex_coord = NULL;
gl->overlay_tex_coord = NULL;
gl->overlay_color_coord = NULL;
gl->overlays = 0;
}
static void gl_overlay_vertex_geom(void *data,
unsigned image,
float x, float y,
float w, float h)
{
GLfloat *vertex = NULL;
gl_t *gl = (gl_t*)data;
if (!gl)
return;
if (image > gl->overlays)
{
RARCH_ERR("[GL]: Invalid overlay id: %u\n", image);
return;
}
vertex = (GLfloat*)&gl->overlay_vertex_coord[image * 8];
/* Flipped, so we preserve top-down semantics. */
y = 1.0f - y;
h = -h;
vertex[0] = x;
vertex[1] = y;
vertex[2] = x + w;
vertex[3] = y;
vertex[4] = x;
vertex[5] = y + h;
vertex[6] = x + w;
vertex[7] = y + h;
}
static void gl_overlay_tex_geom(void *data,
unsigned image,
GLfloat x, GLfloat y,
GLfloat w, GLfloat h)
{
GLfloat *tex = NULL;
gl_t *gl = (gl_t*)data;
if (!gl)
return;
tex = (GLfloat*)&gl->overlay_tex_coord[image * 8];
tex[0] = x;
tex[1] = y;
tex[2] = x + w;
tex[3] = y;
tex[4] = x;
tex[5] = y + h;
tex[6] = x + w;
tex[7] = y + h;
}
static void gl_render_overlay(gl_t *gl, video_frame_info_t *video_info)
{
video_shader_ctx_coords_t coords;
unsigned i;
unsigned width = video_info->width;
unsigned height = video_info->height;
glEnable(GL_BLEND);
if (gl->overlay_full_screen)
glViewport(0, 0, width, height);
/* Ensure that we reset the attrib array. */
video_info->cb_shader_use(gl,
video_info->shader_data, VIDEO_SHADER_STOCK_BLEND, true);
gl->coords.vertex = gl->overlay_vertex_coord;
gl->coords.tex_coord = gl->overlay_tex_coord;
gl->coords.color = gl->overlay_color_coord;
gl->coords.vertices = 4 * gl->overlays;
coords.handle_data = NULL;
coords.data = &gl->coords;
video_driver_set_coords(&coords);
video_info->cb_set_mvp(gl,
video_info->shader_data, &gl->mvp_no_rot);
for (i = 0; i < gl->overlays; i++)
{
glBindTexture(GL_TEXTURE_2D, gl->overlay_tex[i]);
glDrawArrays(GL_TRIANGLE_STRIP, 4 * i, 4);
}
glDisable(GL_BLEND);
gl->coords.vertex = gl->vertex_ptr;
gl->coords.tex_coord = gl->tex_info.coord;
gl->coords.color = gl->white_color_ptr;
gl->coords.vertices = 4;
if (gl->overlay_full_screen)
glViewport(gl->vp.x, gl->vp.y, gl->vp.width, gl->vp.height);
}
#endif
static void gl_set_projection(gl_t *gl,
struct video_ortho *ortho, bool allow_rotate)
{
math_matrix_4x4 rot;
/* Calculate projection. */
matrix_4x4_ortho(gl->mvp_no_rot, ortho->left, ortho->right,
ortho->bottom, ortho->top, ortho->znear, ortho->zfar);
if (!allow_rotate)
{
gl->mvp = gl->mvp_no_rot;
return;
}
matrix_4x4_rotate_z(rot, M_PI * gl->rotation / 180.0f);
matrix_4x4_multiply(gl->mvp, rot, gl->mvp_no_rot);
}
void gl_set_viewport(void *data, video_frame_info_t *video_info,
unsigned viewport_width,
unsigned viewport_height,
bool force_full, bool allow_rotate)
{
gfx_ctx_aspect_t aspect_data;
int x = 0;
int y = 0;
float device_aspect = (float)viewport_width / viewport_height;
gl_t *gl = (gl_t*)data;
unsigned height = video_info->height;
aspect_data.aspect = &device_aspect;
aspect_data.width = viewport_width;
aspect_data.height = viewport_height;
video_context_driver_translate_aspect(&aspect_data);
if (video_info->scale_integer && !force_full)
{
video_viewport_get_scaled_integer(&gl->vp,
viewport_width, viewport_height,
video_driver_get_aspect_ratio(), gl->keep_aspect);
viewport_width = gl->vp.width;
viewport_height = gl->vp.height;
}
else if (gl->keep_aspect && !force_full)
{
float desired_aspect = video_driver_get_aspect_ratio();
#if defined(HAVE_MENU)
if (video_info->aspect_ratio_idx == ASPECT_RATIO_CUSTOM)
{
/* GL has bottom-left origin viewport. */
x = video_info->custom_vp_x;
y = height - video_info->custom_vp_y - video_info->custom_vp_height;
viewport_width = video_info->custom_vp_width;
viewport_height = video_info->custom_vp_height;
}
else
#endif
{
float delta;
if (fabsf(device_aspect - desired_aspect) < 0.0001f)
{
/* If the aspect ratios of screen and desired aspect
* ratio are sufficiently equal (floating point stuff),
* assume they are actually equal.
*/
}
else if (device_aspect > desired_aspect)
{
delta = (desired_aspect / device_aspect - 1.0f) / 2.0f + 0.5f;
x = (int)roundf(viewport_width * (0.5f - delta));
viewport_width = (unsigned)roundf(2.0f * viewport_width * delta);
}
else
{
delta = (device_aspect / desired_aspect - 1.0f) / 2.0f + 0.5f;
y = (int)roundf(viewport_height * (0.5f - delta));
viewport_height = (unsigned)roundf(2.0f * viewport_height * delta);
}
}
gl->vp.x = x;
gl->vp.y = y;
gl->vp.width = viewport_width;
gl->vp.height = viewport_height;
}
else
{
gl->vp.x = gl->vp.y = 0;
gl->vp.width = viewport_width;
gl->vp.height = viewport_height;
}
#if defined(RARCH_MOBILE)
/* In portrait mode, we want viewport to gravitate to top of screen. */
if (device_aspect < 1.0f)
gl->vp.y *= 2;
#endif
glViewport(gl->vp.x, gl->vp.y, gl->vp.width, gl->vp.height);
gl_set_projection(gl, &default_ortho, allow_rotate);
/* Set last backbuffer viewport. */
if (!force_full)
{
gl->vp_out_width = viewport_width;
gl->vp_out_height = viewport_height;
}
#if 0
RARCH_LOG("Setting viewport @ %ux%u\n", viewport_width, viewport_height);
#endif
}
static void gl_set_viewport_wrapper(void *data, unsigned viewport_width,
unsigned viewport_height, bool force_full, bool allow_rotate)
{
video_frame_info_t video_info;
video_driver_build_info(&video_info);
gl_set_viewport(data, &video_info,
viewport_width, viewport_height, force_full, allow_rotate);
}
/* Shaders */
static bool gl_shader_init(gl_t *gl, const gfx_ctx_driver_t *ctx_driver,
struct retro_hw_render_callback *hwr
)
{
video_shader_ctx_init_t init_data;
enum rarch_shader_type type = DEFAULT_SHADER_TYPE;
const char *shader_path = retroarch_get_shader_preset();
if (shader_path)
{
type = video_shader_parse_type(shader_path,
gl->core_context_in_use
? RARCH_SHADER_GLSL : DEFAULT_SHADER_TYPE);
}
switch (type)
{
#ifdef HAVE_CG
case RARCH_SHADER_CG:
if (gl->core_context_in_use)
shader_path = NULL;
break;
#endif
#ifdef HAVE_GLSL
case RARCH_SHADER_GLSL:
gl_glsl_set_get_proc_address(ctx_driver->get_proc_address);
gl_glsl_set_context_type(gl->core_context_in_use,
hwr->version_major, hwr->version_minor);
break;
#endif
default:
RARCH_ERR("[GL]: Not loading any shader, or couldn't find valid shader backend. Continuing without shaders.\n");
return true;
}
init_data.gl.core_context_enabled = gl->core_context_in_use;
init_data.shader_type = type;
init_data.shader = NULL;
init_data.data = gl;
init_data.path = shader_path;
if (video_shader_driver_init(&init_data))
return true;
RARCH_ERR("[GL]: Failed to initialize shader, falling back to stock.\n");
init_data.shader = NULL;
init_data.path = NULL;
return video_shader_driver_init(&init_data);
}
GLenum min_filter_to_mag(GLenum type)
{
switch (type)
{
case GL_LINEAR_MIPMAP_LINEAR:
return GL_LINEAR;
case GL_NEAREST_MIPMAP_NEAREST:
return GL_NEAREST;
default:
break;
}
return type;
}
static uintptr_t gl_get_current_framebuffer(void *data)
{
gl_t *gl = (gl_t*)data;
if (!gl || !gl->has_fbo)
return 0;
return gl->hw_render_fbo[(gl->tex_index + 1) % gl->textures];
}
static void gl_set_rotation(void *data, unsigned rotation)
{
gl_t *gl = (gl_t*)data;
if (!gl)
return;
gl->rotation = 90 * rotation;
gl_set_projection(gl, &default_ortho, true);
}
static void gl_set_video_mode(void *data, unsigned width, unsigned height,
bool fullscreen)
{
gfx_ctx_mode_t mode;
mode.width = width;
mode.height = height;
mode.fullscreen = fullscreen;
video_context_driver_set_video_mode(&mode);
}
static void gl_update_input_size(gl_t *gl, unsigned width,
unsigned height, unsigned pitch, bool clear)
{
GLfloat xamt, yamt;
bool set_coords = false;
if ((width != gl->last_width[gl->tex_index] ||
height != gl->last_height[gl->tex_index]) && gl->empty_buf)
{
/* Resolution change. Need to clear out texture. */
gl->last_width[gl->tex_index] = width;
gl->last_height[gl->tex_index] = height;
if (clear)
{
glPixelStorei(GL_UNPACK_ALIGNMENT,
video_pixel_get_alignment(width * sizeof(uint32_t)));
#if defined(HAVE_PSGL)
glBufferSubData(GL_TEXTURE_REFERENCE_BUFFER_SCE,
gl->tex_w * gl->tex_h * gl->tex_index * gl->base_size,
gl->tex_w * gl->tex_h * gl->base_size,
gl->empty_buf);
#else
glTexSubImage2D(GL_TEXTURE_2D,
0, 0, 0, gl->tex_w, gl->tex_h, gl->texture_type,
gl->texture_fmt, gl->empty_buf);
#endif
}
set_coords = true;
}
else if ((width !=
gl->last_width[(gl->tex_index + gl->textures - 1) % gl->textures]) ||
(height !=
gl->last_height[(gl->tex_index + gl->textures - 1) % gl->textures]))
{
/* We might have used different texture coordinates
* last frame. Edge case if resolution changes very rapidly. */
set_coords = true;
}
if (!set_coords)
return;
xamt = (GLfloat)width / gl->tex_w;
yamt = (GLfloat)height / gl->tex_h;
set_texture_coords(gl->tex_info.coord, xamt, yamt);
}
static void gl_init_textures_data(gl_t *gl)
{
unsigned i;
for (i = 0; i < gl->textures; i++)
{
gl->last_width[i] = gl->tex_w;
gl->last_height[i] = gl->tex_h;
}
for (i = 0; i < gl->textures; i++)
{
gl->prev_info[i].tex = gl->texture[0];
gl->prev_info[i].input_size[0] = gl->tex_w;
gl->prev_info[i].tex_size[0] = gl->tex_w;
gl->prev_info[i].input_size[1] = gl->tex_h;
gl->prev_info[i].tex_size[1] = gl->tex_h;
memcpy(gl->prev_info[i].coord, tex_coords, sizeof(tex_coords));
}
}
static void gl_init_textures(gl_t *gl, const video_info_t *video)
{
unsigned i;
GLenum internal_fmt = gl->internal_fmt;
GLenum texture_type = gl->texture_type;
GLenum texture_fmt = gl->texture_fmt;
#ifdef HAVE_PSGL
if (!gl->pbo)
glGenBuffers(1, &gl->pbo);
glBindBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, gl->pbo);
glBufferData(GL_TEXTURE_REFERENCE_BUFFER_SCE,
gl->tex_w * gl->tex_h * gl->base_size * gl->textures,
NULL, GL_STREAM_DRAW);
#endif
#if defined(HAVE_OPENGLES) && !defined(HAVE_PSGL)
/* GLES is picky about which format we use here.
* Without extensions, we can *only* render to 16-bit FBOs. */
if (gl->hw_render_use && gl->base_size == sizeof(uint32_t))
{
if (gl_check_capability(GL_CAPS_ARGB8))
{
internal_fmt = GL_RGBA;
texture_type = GL_RGBA;
texture_fmt = GL_UNSIGNED_BYTE;
}
else
{
RARCH_WARN("[GL]: 32-bit FBO not supported. Falling back to 16-bit.\n");
internal_fmt = GL_RGB;
texture_type = GL_RGB;
texture_fmt = GL_UNSIGNED_SHORT_5_6_5;
}
}
#endif
glGenTextures(gl->textures, gl->texture);
for (i = 0; i < gl->textures; i++)
{
gl_bind_texture(gl->texture[i], gl->wrap_mode, gl->tex_mag_filter,
gl->tex_min_filter);
if (gl->renderchain_driver->init_texture_reference)
gl->renderchain_driver->init_texture_reference(
gl, gl->renderchain_data, i, internal_fmt,
texture_fmt, texture_type);
}
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
}
static INLINE void gl_set_shader_viewports(gl_t *gl)
{
unsigned width, height;
video_shader_ctx_info_t shader_info;
video_driver_get_size(&width, &height);
shader_info.data = gl;
shader_info.idx = 0;
shader_info.set_active = true;
video_shader_driver_use(&shader_info);
gl_set_viewport_wrapper(gl, width, height, false, true);
shader_info.data = gl;
shader_info.idx = 1;
shader_info.set_active = true;
video_shader_driver_use(&shader_info);
gl_set_viewport_wrapper(gl, width, height, false, true);
}
void gl_load_texture_data(
uint32_t id_data,
enum gfx_wrap_type wrap_type,
enum texture_filter_type filter_type,
unsigned alignment,
unsigned width, unsigned height,
const void *frame, unsigned base_size)
{
GLint mag_filter, min_filter;
bool want_mipmap = false;
bool use_rgba = video_driver_supports_rgba();
bool rgb32 = (base_size == (sizeof(uint32_t)));
GLenum wrap = gl_wrap_type_to_enum(wrap_type);
GLuint id = (GLuint)id_data;
bool have_mipmap = gl_check_capability(GL_CAPS_MIPMAP);
if (!have_mipmap)
{
/* Assume no mipmapping support. */
switch (filter_type)
{
case TEXTURE_FILTER_MIPMAP_LINEAR:
filter_type = TEXTURE_FILTER_LINEAR;
break;
case TEXTURE_FILTER_MIPMAP_NEAREST:
filter_type = TEXTURE_FILTER_NEAREST;
break;
default:
break;
}
}
switch (filter_type)
{
case TEXTURE_FILTER_MIPMAP_LINEAR:
min_filter = GL_LINEAR_MIPMAP_NEAREST;
mag_filter = GL_LINEAR;
want_mipmap = true;
break;
case TEXTURE_FILTER_MIPMAP_NEAREST:
min_filter = GL_NEAREST_MIPMAP_NEAREST;
mag_filter = GL_NEAREST;
want_mipmap = true;
break;
case TEXTURE_FILTER_NEAREST:
min_filter = GL_NEAREST;
mag_filter = GL_NEAREST;
break;
case TEXTURE_FILTER_LINEAR:
default:
min_filter = GL_LINEAR;
mag_filter = GL_LINEAR;
break;
}
gl_bind_texture(id, wrap, mag_filter, min_filter);
glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
glTexImage2D(GL_TEXTURE_2D,
0,
(use_rgba || !rgb32) ? GL_RGBA : RARCH_GL_INTERNAL_FORMAT32,
width, height, 0,
(use_rgba || !rgb32) ? GL_RGBA : RARCH_GL_TEXTURE_TYPE32,
(rgb32) ? RARCH_GL_FORMAT32 : GL_UNSIGNED_SHORT_4_4_4_4, frame);
if (want_mipmap && have_mipmap)
glGenerateMipmap(GL_TEXTURE_2D);
}
static void gl_set_texture_frame(void *data,
const void *frame, bool rgb32, unsigned width, unsigned height,
float alpha)
{
enum texture_filter_type menu_filter;
settings_t *settings = config_get_ptr();
unsigned base_size = rgb32 ? sizeof(uint32_t) : sizeof(uint16_t);
gl_t *gl = (gl_t*)data;
if (!gl)
return;
context_bind_hw_render(false);
menu_filter = settings->bools.menu_linear_filter ? TEXTURE_FILTER_LINEAR : TEXTURE_FILTER_NEAREST;
if (!gl->menu_texture)
glGenTextures(1, &gl->menu_texture);
gl_load_texture_data(gl->menu_texture,
RARCH_WRAP_EDGE, menu_filter,
video_pixel_get_alignment(width * base_size),
width, height, frame,
base_size);
gl->menu_texture_alpha = alpha;
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
context_bind_hw_render(true);
}
static void gl_set_texture_enable(void *data, bool state, bool full_screen)
{
gl_t *gl = (gl_t*)data;
if (!gl)
return;
gl->menu_texture_enable = state;
gl->menu_texture_full_screen = full_screen;
}
static void gl_render_osd_background(
gl_t *gl, video_frame_info_t *video_info,
const char *msg)
{
video_shader_ctx_coords_t coords_data;
video_coords_t coords;
struct uniform_info uniform_param;
float colors[4];
const unsigned
vertices_total = 6;
float *dummy = (float*)calloc(4 * vertices_total, sizeof(float));
float *verts = (float*)malloc(2 * vertices_total * sizeof(float));
settings_t *settings = config_get_ptr();
int msg_width =
font_driver_get_message_width(NULL, msg, strlen(msg), 1.0f);
/* shader driver expects vertex coords as 0..1 */
float x = video_info->font_msg_pos_x;
float y = video_info->font_msg_pos_y;
float width = msg_width / (float)video_info->width;
float height =
settings->floats.video_font_size / (float)video_info->height;
float x2 = 0.005f; /* extend background around text */
float y2 = 0.005f;
x -= x2;
y -= y2;
width += x2;
height += y2;
colors[0] = settings->uints.video_msg_bgcolor_red / 255.0f;
colors[1] = settings->uints.video_msg_bgcolor_green / 255.0f;
colors[2] = settings->uints.video_msg_bgcolor_blue / 255.0f;
colors[3] = settings->floats.video_msg_bgcolor_opacity;
/* triangle 1 */
verts[0] = x;
verts[1] = y; /* bottom-left */
verts[2] = x;
verts[3] = y + height; /* top-left */
verts[4] = x + width;
verts[5] = y + height; /* top-right */
/* triangle 2 */
verts[6] = x;
verts[7] = y; /* bottom-left */
verts[8] = x + width;
verts[9] = y + height; /* top-right */
verts[10] = x + width;
verts[11] = y; /* bottom-right */
coords.color = dummy;
coords.vertex = verts;
coords.tex_coord = dummy;
coords.lut_tex_coord = dummy;
coords.vertices = vertices_total;
coords_data.handle_data = NULL;
coords_data.data = &coords;
video_driver_set_viewport(video_info->width,
video_info->height, true, false);
video_info->cb_shader_use(gl,
video_info->shader_data, VIDEO_SHADER_STOCK_BLEND, true);
video_driver_set_coords(&coords_data);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendEquation(GL_FUNC_ADD);
video_info->cb_set_mvp(gl,
video_info->shader_data, &gl->mvp_no_rot);
uniform_param.type = UNIFORM_4F;
uniform_param.enabled = true;
uniform_param.location = 0;
uniform_param.count = 0;
uniform_param.lookup.type = SHADER_PROGRAM_FRAGMENT;
uniform_param.lookup.ident = "bgcolor";
uniform_param.lookup.idx = VIDEO_SHADER_STOCK_BLEND;
uniform_param.lookup.add_prefix = true;
uniform_param.lookup.enable = true;
uniform_param.result.f.v0 = colors[0];
uniform_param.result.f.v1 = colors[1];
uniform_param.result.f.v2 = colors[2];
uniform_param.result.f.v3 = colors[3];
video_shader_driver_set_parameter(&uniform_param);
glDrawArrays(GL_TRIANGLES, 0, coords.vertices);
/* reset uniform back to zero so it is not used for anything else */
uniform_param.result.f.v0 = 0.0f;
uniform_param.result.f.v1 = 0.0f;
uniform_param.result.f.v2 = 0.0f;
uniform_param.result.f.v3 = 0.0f;
video_shader_driver_set_parameter(&uniform_param);
free(dummy);
free(verts);
video_driver_set_viewport(video_info->width,
video_info->height, false, true);
}
static void gl_set_osd_msg(void *data,
video_frame_info_t *video_info,
const char *msg,
const void *params, void *font)
{
font_driver_render_msg(video_info, font, msg, params);
}
#if defined(HAVE_MENU)
static void gl_show_mouse(void *data, bool state)
{
video_context_driver_show_mouse(&state);
}
static struct video_shader *gl_get_current_shader(void *data)
{
video_shader_ctx_t shader_info;
video_shader_driver_direct_get_current_shader(&shader_info);
return shader_info.data;
}
static INLINE void gl_draw_texture(gl_t *gl, video_frame_info_t *video_info)
{
video_shader_ctx_coords_t coords;
GLfloat color[16];
unsigned width = video_info->width;
unsigned height = video_info->height;
color[ 0] = 1.0f;
color[ 1] = 1.0f;
color[ 2] = 1.0f;
color[ 3] = gl->menu_texture_alpha;
color[ 4] = 1.0f;
color[ 5] = 1.0f;
color[ 6] = 1.0f;
color[ 7] = gl->menu_texture_alpha;
color[ 8] = 1.0f;
color[ 9] = 1.0f;
color[10] = 1.0f;
color[11] = gl->menu_texture_alpha;
color[12] = 1.0f;
color[13] = 1.0f;
color[14] = 1.0f;
color[15] = gl->menu_texture_alpha;
gl->coords.vertex = vertexes_flipped;
gl->coords.tex_coord = tex_coords;
gl->coords.color = color;
glBindTexture(GL_TEXTURE_2D, gl->menu_texture);
video_info->cb_shader_use(gl,
video_info->shader_data, VIDEO_SHADER_STOCK_BLEND, true);
gl->coords.vertices = 4;
coords.handle_data = NULL;
coords.data = &gl->coords;
video_driver_set_coords(&coords);
video_info->cb_set_mvp(gl,
video_info->shader_data, &gl->mvp_no_rot);
glEnable(GL_BLEND);
if (gl->menu_texture_full_screen)
{
glViewport(0, 0, width, height);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glViewport(gl->vp.x, gl->vp.y, gl->vp.width, gl->vp.height);
}
else
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisable(GL_BLEND);
gl->coords.vertex = gl->vertex_ptr;
gl->coords.tex_coord = gl->tex_info.coord;
gl->coords.color = gl->white_color_ptr;
}
#endif
static void gl_pbo_async_readback(gl_t *gl)
{
#ifdef HAVE_OPENGLES
GLenum fmt = GL_RGBA;
GLenum type = GL_UNSIGNED_BYTE;
#else
GLenum fmt = GL_BGRA;
GLenum type = GL_UNSIGNED_INT_8_8_8_8_REV;
#endif
if (gl->renderchain_driver->bind_pbo)
gl->renderchain_driver->bind_pbo(
gl->pbo_readback[gl->pbo_readback_index++]);
gl->pbo_readback_index &= 3;
/* 4 frames back, we can readback. */
gl->pbo_readback_valid[gl->pbo_readback_index] = true;
if (gl->renderchain_driver->readback)
gl->renderchain_driver->readback(gl, gl->renderchain_data,
video_pixel_get_alignment(gl->vp.width * sizeof(uint32_t)),
fmt, type, NULL);
if (gl->renderchain_driver->unbind_pbo)
gl->renderchain_driver->unbind_pbo(gl, gl->renderchain_data);
}
static bool gl_frame(void *data, const void *frame,
unsigned frame_width, unsigned frame_height,
uint64_t frame_count,
unsigned pitch, const char *msg,
video_frame_info_t *video_info)
{
video_shader_ctx_coords_t coords;
video_shader_ctx_params_t params;
struct video_tex_info feedback_info;
gl_t *gl = (gl_t*)data;
unsigned width = video_info->width;
unsigned height = video_info->height;
if (!gl)
return false;
context_bind_hw_render(false);
if (gl->core_context_in_use && gl->renderchain_driver->bind_vao)
gl->renderchain_driver->bind_vao(gl, gl->renderchain_data);
video_info->cb_shader_use(gl, video_info->shader_data, 1, true);
#ifdef IOS
/* Apparently the viewport is lost each frame, thanks Apple. */
gl_set_viewport(gl, video_info, width, height, false, true);
#endif
/* Render to texture in first pass. */
if (gl->fbo_inited)
{
if (gl->renderchain_driver->recompute_pass_sizes)
gl->renderchain_driver->recompute_pass_sizes(
gl, gl->renderchain_data, frame_width, frame_height,
gl->vp_out_width, gl->vp_out_height);
if (gl->renderchain_driver->start_render)
gl->renderchain_driver->start_render(gl, gl->renderchain_data,
video_info);
}
if (gl->should_resize)
{
gfx_ctx_mode_t mode;
gl->should_resize = false;
mode.width = width;
mode.height = height;
video_info->cb_set_resize(video_info->context_data,
mode.width, mode.height);
if (gl->fbo_inited)
{
if (gl->renderchain_driver->check_fbo_dimensions)
gl->renderchain_driver->check_fbo_dimensions(gl,
gl->renderchain_data);
/* Go back to what we're supposed to do,
* render to FBO #0. */
if (gl->renderchain_driver->start_render)
gl->renderchain_driver->start_render(gl, gl->renderchain_data,
video_info);
}
else
gl_set_viewport(gl, video_info, width, height, false, true);
}
if (frame)
gl->tex_index = ((gl->tex_index + 1) % gl->textures);
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
/* Can be NULL for frame dupe / NULL render. */
if (frame)
{
if (!gl->hw_render_fbo_init)
{
gl_update_input_size(gl, frame_width, frame_height, pitch, true);
if (gl->renderchain_driver->copy_frame)
gl->renderchain_driver->copy_frame(gl, gl->renderchain_data,
video_info, frame, frame_width, frame_height, pitch);
}
/* No point regenerating mipmaps
* if there are no new frames. */
if (gl->tex_mipmap && gl->have_mipmap)
glGenerateMipmap(GL_TEXTURE_2D);
}
/* Have to reset rendering state which libretro core
* could easily have overridden. */
if (gl->hw_render_fbo_init)
{
gl_update_input_size(gl, frame_width, frame_height, pitch, false);
if (!gl->fbo_inited)
{
if (gl->renderchain_driver->bind_backbuffer)
gl->renderchain_driver->bind_backbuffer(gl, gl->renderchain_data);
gl_set_viewport(gl, video_info, width, height, false, true);
}
if (gl->renderchain_driver->restore_default_state)
gl->renderchain_driver->restore_default_state(gl, gl->renderchain_data);
glDisable(GL_STENCIL_TEST);
glDisable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendEquation(GL_FUNC_ADD);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
}
gl->tex_info.tex = gl->texture[gl->tex_index];
gl->tex_info.input_size[0] = frame_width;
gl->tex_info.input_size[1] = frame_height;
gl->tex_info.tex_size[0] = gl->tex_w;
gl->tex_info.tex_size[1] = gl->tex_h;
feedback_info = gl->tex_info;
if (gl->fbo_feedback_enable)
{
const struct video_fbo_rect
*rect = &gl->fbo_rect[gl->fbo_feedback_pass];
GLfloat xamt = (GLfloat)rect->img_width / rect->width;
GLfloat yamt = (GLfloat)rect->img_height / rect->height;
feedback_info.tex = gl->fbo_feedback_texture;
feedback_info.input_size[0] = rect->img_width;
feedback_info.input_size[1] = rect->img_height;
feedback_info.tex_size[0] = rect->width;
feedback_info.tex_size[1] = rect->height;
set_texture_coords(feedback_info.coord, xamt, yamt);
}
glClear(GL_COLOR_BUFFER_BIT);
params.data = gl;
params.width = frame_width;
params.height = frame_height;
params.tex_width = gl->tex_w;
params.tex_height = gl->tex_h;
params.out_width = gl->vp.width;
params.out_height = gl->vp.height;
params.frame_counter = (unsigned int)frame_count;
params.info = &gl->tex_info;
params.prev_info = gl->prev_info;
params.feedback_info = &feedback_info;
params.fbo_info = NULL;
params.fbo_info_cnt = 0;
video_shader_driver_set_parameters(&params);
gl->coords.vertices = 4;
coords.handle_data = NULL;
coords.data = &gl->coords;
video_driver_set_coords(&coords);
video_info->cb_set_mvp(gl, video_info->shader_data, &gl->mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
if (gl->fbo_inited && gl->renderchain_driver->renderchain_render)
gl->renderchain_driver->renderchain_render(gl, gl->renderchain_data,
video_info,
frame_count, &gl->tex_info, &feedback_info);
/* Set prev textures. */
if (gl->renderchain_driver->bind_prev_texture)
gl->renderchain_driver->bind_prev_texture(gl, gl->renderchain_data,
&gl->tex_info);
#if defined(HAVE_MENU)
if (gl->menu_texture_enable)
{
menu_driver_frame(video_info);
if (gl->menu_texture)
gl_draw_texture(gl, video_info);
}
#endif
if (!string_is_empty(msg))
{
settings_t *settings = config_get_ptr();
if (settings && settings->bools.video_msg_bgcolor_enable)
gl_render_osd_background(gl, video_info, msg);
font_driver_render_msg(video_info, NULL, msg, NULL);
}
#ifdef HAVE_OVERLAY
if (gl->overlay_enable)
gl_render_overlay(gl, video_info);
#endif
video_info->cb_update_window_title(
video_info->context_data, video_info);
/* Reset state which could easily mess up libretro core. */
if (gl->hw_render_fbo_init)
{
video_info->cb_shader_use(gl, video_info->shader_data, 0, true);
glBindTexture(GL_TEXTURE_2D, 0);
if (gl->renderchain_driver->disable_client_arrays)
gl->renderchain_driver->disable_client_arrays(gl,
gl->renderchain_data);
}
/* Screenshots. */
if (gl->readback_buffer_screenshot)
{
if (gl->renderchain_driver->readback)
gl->renderchain_driver->readback(gl,
gl->renderchain_data,
4, GL_RGBA, GL_UNSIGNED_BYTE,
gl->readback_buffer_screenshot);
}
/* Don't readback if we're in menu mode. */
else if (gl->pbo_readback_enable)
#ifdef HAVE_MENU
/* Don't readback if we're in menu mode. */
if (!gl->menu_texture_enable)
#endif
gl_pbo_async_readback(gl);
/* emscripten has to do black frame insertion in its main loop */
#ifndef EMSCRIPTEN
/* Disable BFI during fast forward, slow-motion,
* and pause to prevent flicker. */
if (
video_info->black_frame_insertion
&& !video_info->input_driver_nonblock_state
&& !video_info->runloop_is_slowmotion
&& !video_info->runloop_is_paused)
{
video_info->cb_swap_buffers(video_info->context_data, video_info);
glClear(GL_COLOR_BUFFER_BIT);
}
#endif
video_info->cb_swap_buffers(video_info->context_data, video_info);
/* check if we are fast forwarding, if we are ignore hard sync */
if (gl->have_sync && video_info->hard_sync && !video_info->input_driver_nonblock_state)
{
glClear(GL_COLOR_BUFFER_BIT);
if (gl->renderchain_driver->fence_iterate)
gl->renderchain_driver->fence_iterate(gl,
gl->renderchain_data,
video_info->hard_sync_frames);
}
if (gl->core_context_in_use &&
gl->renderchain_driver->unbind_vao)
gl->renderchain_driver->unbind_vao(gl,
gl->renderchain_data);
context_bind_hw_render(true);
return true;
}
static void gl_destroy_resources(gl_t *gl)
{
if (gl)
{
if (gl->empty_buf)
free(gl->empty_buf);
if (gl->conv_buffer)
free(gl->conv_buffer);
free(gl);
}
gl_shared_context_use = false;
gl_query_core_context_unset();
}
static void gl_deinit_chain(gl_t *gl)
{
if (!gl || !gl->renderchain_driver)
return;
if (gl->renderchain_driver->chain_free)
gl->renderchain_driver->chain_free(gl, gl->renderchain_data);
gl->renderchain_driver = NULL;
gl->renderchain_data = NULL;
}
static void gl_free(void *data)
{
gl_t *gl = (gl_t*)data;
if (!gl)
return;
context_bind_hw_render(false);
if (gl->have_sync)
{
if (gl->renderchain_driver->fence_free)
gl->renderchain_driver->fence_free(gl, gl->renderchain_data);
}
font_driver_free_osd();
video_shader_driver_deinit();
if (gl->renderchain_driver->disable_client_arrays)
gl->renderchain_driver->disable_client_arrays(gl, gl->renderchain_data);
glDeleteTextures(gl->textures, gl->texture);
#if defined(HAVE_MENU)
if (gl->menu_texture)
glDeleteTextures(1, &gl->menu_texture);
#endif
#ifdef HAVE_OVERLAY
gl_free_overlay(gl);
#endif
#if defined(HAVE_PSGL)
glBindBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, 0);
glDeleteBuffers(1, &gl->pbo);
#endif
scaler_ctx_gen_reset(&gl->scaler);
if (gl->pbo_readback_enable)
{
glDeleteBuffers(4, gl->pbo_readback);
scaler_ctx_gen_reset(&gl->pbo_readback_scaler);
}
if (gl->core_context_in_use)
{
if (gl->renderchain_driver->unbind_vao)
gl->renderchain_driver->unbind_vao(gl, gl->renderchain_data);
if (gl->renderchain_driver->free_vao)
gl->renderchain_driver->free_vao(gl, gl->renderchain_data);
}
if (gl->renderchain_driver->free)
gl->renderchain_driver->free(gl, gl->renderchain_data);
gl_deinit_chain(gl);
video_context_driver_free();
gl_destroy_resources(gl);
}
static void gl_set_nonblock_state(void *data, bool state)
{
unsigned interval = 0;
gl_t *gl = (gl_t*)data;
settings_t *settings = config_get_ptr();
if (!gl)
return;
RARCH_LOG("[GL]: VSync => %s\n", state ? "off" : "on");
context_bind_hw_render(false);
if (!state)
interval = settings->uints.video_swap_interval;
video_context_driver_swap_interval(&interval);
context_bind_hw_render(true);
}
static bool resolve_extensions(gl_t *gl, const char *context_ident, const video_info_t *video)
{
settings_t *settings = config_get_ptr();
/* have_es2_compat - GL_RGB565 internal format support.
* Even though ES2 support is claimed, the format
* is not supported on older ATI catalyst drivers.
*
* The speed gain from using GL_RGB565 is worth
* adding some workarounds for.
*
* have_sync - Use ARB_sync to reduce latency.
*/
gl->have_full_npot_support = gl_check_capability(GL_CAPS_FULL_NPOT_SUPPORT);
gl->have_mipmap = gl_check_capability(GL_CAPS_MIPMAP);
gl->have_es2_compat = gl_check_capability(GL_CAPS_ES2_COMPAT);
gl->support_unpack_row_length = gl_check_capability(GL_CAPS_UNPACK_ROW_LENGTH);
gl->have_sync = gl_check_capability(GL_CAPS_SYNC);
if (gl->have_sync && settings->bools.video_hard_sync)
RARCH_LOG("[GL]: Using ARB_sync to reduce latency.\n");
video_driver_unset_rgba();
if (gl->renderchain_driver->resolve_extensions)
gl->renderchain_driver->resolve_extensions(gl, gl->renderchain_data, context_ident, video);
#if defined(HAVE_OPENGLES) && !defined(HAVE_PSGL)
if (!gl_check_capability(GL_CAPS_BGRA8888))
{
video_driver_set_rgba();
RARCH_WARN("[GL]: GLES implementation does not have BGRA8888 extension.\n"
"32-bit path will require conversion.\n");
}
/* TODO/FIXME - No extensions for float FBO currently. */
#endif
#ifdef GL_DEBUG
/* Useful for debugging, but kinda obnoxious otherwise. */
RARCH_LOG("[GL]: Supported extensions:\n");
if (gl->core_context_in_use)
{
#ifdef GL_NUM_EXTENSIONS
GLint exts = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &exts);
for (GLint i = 0; i < exts; i++)
{
const char *ext = (const char*)glGetStringi(GL_EXTENSIONS, i);
if (ext)
RARCH_LOG("\t%s\n", ext);
}
#endif
}
else
{
const char *ext = (const char*)glGetString(GL_EXTENSIONS);
if (ext)
{
size_t i;
struct string_list *list = string_split(ext, " ");
for (i = 0; i < list->size; i++)
RARCH_LOG("\t%s\n", list->elems[i].data);
string_list_free(list);
}
}
#endif
return true;
}
static INLINE void gl_set_texture_fmts(gl_t *gl, bool rgb32)
{
gl->internal_fmt = RARCH_GL_INTERNAL_FORMAT16;
gl->texture_type = RARCH_GL_TEXTURE_TYPE16;
gl->texture_fmt = RARCH_GL_FORMAT16;
gl->base_size = sizeof(uint16_t);
if (rgb32)
{
bool use_rgba = video_driver_supports_rgba();
gl->internal_fmt = RARCH_GL_INTERNAL_FORMAT32;
gl->texture_type = RARCH_GL_TEXTURE_TYPE32;
gl->texture_fmt = RARCH_GL_FORMAT32;
gl->base_size = sizeof(uint32_t);
if (use_rgba)
{
gl->internal_fmt = GL_RGBA;
gl->texture_type = GL_RGBA;
}
}
#ifndef HAVE_OPENGLES
else if (gl->have_es2_compat)
{
RARCH_LOG("[GL]: Using GL_RGB565 for texture uploads.\n");
gl->internal_fmt = RARCH_GL_INTERNAL_FORMAT16_565;
gl->texture_type = RARCH_GL_TEXTURE_TYPE16_565;
gl->texture_fmt = RARCH_GL_FORMAT16_565;
}
#endif
}
static bool gl_init_pbo_readback(gl_t *gl)
{
unsigned i;
/* If none of these are bound, we have to assume
* we are not going to use PBOs */
if ( !gl->renderchain_driver->bind_pbo &&
!gl->renderchain_driver->unbind_pbo &&
!gl->renderchain_driver->init_pbo
)
return false;
glGenBuffers(4, gl->pbo_readback);
for (i = 0; i < 4; i++)
{
if (gl->renderchain_driver->bind_pbo)
gl->renderchain_driver->bind_pbo(gl->pbo_readback[i]);
if (gl->renderchain_driver->init_pbo)
gl->renderchain_driver->init_pbo(gl->vp.width *
gl->vp.height * sizeof(uint32_t), NULL);
}
if (gl->renderchain_driver->unbind_pbo)
gl->renderchain_driver->unbind_pbo(gl, gl->renderchain_data);
#ifndef HAVE_OPENGLES3
{
struct scaler_ctx *scaler = &gl->pbo_readback_scaler;
scaler->in_width = gl->vp.width;
scaler->in_height = gl->vp.height;
scaler->out_width = gl->vp.width;
scaler->out_height = gl->vp.height;
scaler->in_stride = gl->vp.width * sizeof(uint32_t);
scaler->out_stride = gl->vp.width * 3;
scaler->in_fmt = SCALER_FMT_ARGB8888;
scaler->out_fmt = SCALER_FMT_BGR24;
scaler->scaler_type = SCALER_TYPE_POINT;
if (!scaler_ctx_gen_filter(scaler))
{
gl->pbo_readback_enable = false;
RARCH_ERR("[GL]: Failed to initialize pixel conversion for PBO.\n");
glDeleteBuffers(4, gl->pbo_readback);
return false;
}
}
#endif
return true;
}
static const gfx_ctx_driver_t *gl_get_context(gl_t *gl)
{
enum gfx_ctx_api api;
const char *api_name = NULL;
settings_t *settings = config_get_ptr();
struct retro_hw_render_callback *hwr = video_driver_get_hw_context();
unsigned major = hwr->version_major;
unsigned minor = hwr->version_minor;
#ifdef HAVE_OPENGLES
api = GFX_CTX_OPENGL_ES_API;
api_name = "OpenGL ES 2.0";
if (hwr->context_type == RETRO_HW_CONTEXT_OPENGLES3)
{
major = 3;
minor = 0;
api_name = "OpenGL ES 3.0";
}
else if (hwr->context_type == RETRO_HW_CONTEXT_OPENGLES_VERSION)
api_name = "OpenGL ES 3.1+";
#else
api = GFX_CTX_OPENGL_API;
api_name = "OpenGL";
#endif
(void)api_name;
gl_shared_context_use = settings->bools.video_shared_context
&& hwr->context_type != RETRO_HW_CONTEXT_NONE;
if ( (libretro_get_shared_context())
&& (hwr->context_type != RETRO_HW_CONTEXT_NONE))
gl_shared_context_use = true;
return video_context_driver_init_first(gl,
settings->arrays.video_context_driver,
api, major, minor, gl_shared_context_use);
}
#ifdef GL_DEBUG
#ifdef HAVE_GL_DEBUG_ES
#define DEBUG_CALLBACK_TYPE GL_APIENTRY
#define GL_DEBUG_SOURCE_API GL_DEBUG_SOURCE_API_KHR
#define GL_DEBUG_SOURCE_WINDOW_SYSTEM GL_DEBUG_SOURCE_WINDOW_SYSTEM_KHR
#define GL_DEBUG_SOURCE_SHADER_COMPILER GL_DEBUG_SOURCE_SHADER_COMPILER_KHR
#define GL_DEBUG_SOURCE_THIRD_PARTY GL_DEBUG_SOURCE_THIRD_PARTY_KHR
#define GL_DEBUG_SOURCE_APPLICATION GL_DEBUG_SOURCE_APPLICATION_KHR
#define GL_DEBUG_SOURCE_OTHER GL_DEBUG_SOURCE_OTHER_KHR
#define GL_DEBUG_TYPE_ERROR GL_DEBUG_TYPE_ERROR_KHR
#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_KHR
#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_KHR
#define GL_DEBUG_TYPE_PORTABILITY GL_DEBUG_TYPE_PORTABILITY_KHR
#define GL_DEBUG_TYPE_PERFORMANCE GL_DEBUG_TYPE_PERFORMANCE_KHR
#define GL_DEBUG_TYPE_MARKER GL_DEBUG_TYPE_MARKER_KHR
#define GL_DEBUG_TYPE_PUSH_GROUP GL_DEBUG_TYPE_PUSH_GROUP_KHR
#define GL_DEBUG_TYPE_POP_GROUP GL_DEBUG_TYPE_POP_GROUP_KHR
#define GL_DEBUG_TYPE_OTHER GL_DEBUG_TYPE_OTHER_KHR
#define GL_DEBUG_SEVERITY_HIGH GL_DEBUG_SEVERITY_HIGH_KHR
#define GL_DEBUG_SEVERITY_MEDIUM GL_DEBUG_SEVERITY_MEDIUM_KHR
#define GL_DEBUG_SEVERITY_LOW GL_DEBUG_SEVERITY_LOW_KHR
#else
#define DEBUG_CALLBACK_TYPE APIENTRY
#endif
static void DEBUG_CALLBACK_TYPE gl_debug_cb(GLenum source, GLenum type,
GLuint id, GLenum severity, GLsizei length,
const GLchar *message, void *userParam)
{
const char *src = NULL;
const char *typestr = NULL;
gl_t *gl = (gl_t*)userParam; /* Useful for debugger. */
(void)gl;
(void)id;
(void)length;
switch (source)
{
case GL_DEBUG_SOURCE_API:
src = "API";
break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
src = "Window system";
break;
case GL_DEBUG_SOURCE_SHADER_COMPILER:
src = "Shader compiler";
break;
case GL_DEBUG_SOURCE_THIRD_PARTY:
src = "3rd party";
break;
case GL_DEBUG_SOURCE_APPLICATION:
src = "Application";
break;
case GL_DEBUG_SOURCE_OTHER:
src = "Other";
break;
default:
src = "Unknown";
break;
}
switch (type)
{
case GL_DEBUG_TYPE_ERROR:
typestr = "Error";
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
typestr = "Deprecated behavior";
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
typestr = "Undefined behavior";
break;
case GL_DEBUG_TYPE_PORTABILITY:
typestr = "Portability";
break;
case GL_DEBUG_TYPE_PERFORMANCE:
typestr = "Performance";
break;
case GL_DEBUG_TYPE_MARKER:
typestr = "Marker";
break;
case GL_DEBUG_TYPE_PUSH_GROUP:
typestr = "Push group";
break;
case GL_DEBUG_TYPE_POP_GROUP:
typestr = "Pop group";
break;
case GL_DEBUG_TYPE_OTHER:
typestr = "Other";
break;
default:
typestr = "Unknown";
break;
}
switch (severity)
{
case GL_DEBUG_SEVERITY_HIGH:
RARCH_ERR("[GL debug (High, %s, %s)]: %s\n", src, typestr, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM:
RARCH_WARN("[GL debug (Medium, %s, %s)]: %s\n", src, typestr, message);
break;
case GL_DEBUG_SEVERITY_LOW:
RARCH_LOG("[GL debug (Low, %s, %s)]: %s\n", src, typestr, message);
break;
}
}
static void gl_begin_debug(gl_t *gl)
{
if (gl_check_capability(GL_CAPS_DEBUG))
{
#ifdef HAVE_GL_DEBUG_ES
glDebugMessageCallbackKHR(gl_debug_cb, gl);
glDebugMessageControlKHR(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_TRUE);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR);
#else
glDebugMessageCallback(gl_debug_cb, gl);
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_TRUE);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
#endif
}
else
RARCH_ERR("[GL]: Neither GL_KHR_debug nor GL_ARB_debug_output are implemented. Cannot start GL debugging.\n");
}
#endif
extern gl_renderchain_driver_t gl2_renderchain;
static const gl_renderchain_driver_t *renderchain_gl_drivers[] = {
#if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES)
&gl2_renderchain,
#endif
NULL
};
static bool renderchain_gl_init_first(
const gl_renderchain_driver_t **renderchain_driver,
void **renderchain_handle)
{
unsigned i;
for (i = 0; renderchain_gl_drivers[i]; i++)
{
void *data = renderchain_gl_drivers[i]->chain_new();
if (!data)
continue;
*renderchain_driver = renderchain_gl_drivers[i];
*renderchain_handle = data;
return true;
}
return false;
}
static void *gl_init(const video_info_t *video, const input_driver_t **input, void **input_data)
{
gfx_ctx_mode_t mode;
gfx_ctx_input_t inp;
unsigned interval, mip_level;
unsigned full_x, full_y;
video_shader_ctx_filter_t shader_filter;
video_shader_ctx_info_t shader_info;
video_shader_ctx_ident_t ident_info;
settings_t *settings = config_get_ptr();
video_shader_ctx_wrap_t wrap_info = {0};
unsigned win_width = 0;
unsigned win_height = 0;
unsigned temp_width = 0;
unsigned temp_height = 0;
bool force_smooth = false;
const char *vendor = NULL;
const char *renderer = NULL;
const char *version = NULL;
struct retro_hw_render_callback *hwr = NULL;
char *error_string = NULL;
gl_t *gl = (gl_t*)calloc(1, sizeof(gl_t));
const gfx_ctx_driver_t *ctx_driver = gl_get_context(gl);
if (!gl || !ctx_driver)
goto error;
video_context_driver_set((const gfx_ctx_driver_t*)ctx_driver);
gl->video_info = *video;
RARCH_LOG("[GL]: Found GL context: %s\n", ctx_driver->ident);
video_context_driver_get_video_size(&mode);
full_x = mode.width;
full_y = mode.height;
mode.width = 0;
mode.height = 0;
interval = 0;
RARCH_LOG("[GL]: Detecting screen resolution %ux%u.\n", full_x, full_y);
if (video->vsync)
interval = video->swap_interval;
video_context_driver_swap_interval(&interval);
win_width = video->width;
win_height = video->height;
if (video->fullscreen && (win_width == 0) && (win_height == 0))
{
win_width = full_x;
win_height = full_y;
}
mode.width = win_width;
mode.height = win_height;
mode.fullscreen = video->fullscreen;
if (!video_context_driver_set_video_mode(&mode))
goto error;
/* Clear out potential error flags in case we use cached context. */
glGetError();
vendor = (const char*)glGetString(GL_VENDOR);
renderer = (const char*)glGetString(GL_RENDERER);
version = (const char*)glGetString(GL_VERSION);
RARCH_LOG("[GL]: Vendor: %s, Renderer: %s.\n", vendor, renderer);
RARCH_LOG("[GL]: Version: %s.\n", version);
if (!string_is_empty(version))
sscanf(version, "%d.%d", &gl->version_major, &gl->version_minor);
#ifndef RARCH_CONSOLE
rglgen_resolve_symbols(ctx_driver->get_proc_address);
#endif
hwr = video_driver_get_hw_context();
if (hwr->context_type == RETRO_HW_CONTEXT_OPENGL_CORE)
{
gfx_ctx_flags_t flags;
gl_query_core_context_set(true);
gl->core_context_in_use = true;
/**
* Ensure that the rest of the frontend knows we have a core context
*/
flags.flags = 0;
BIT32_SET(flags.flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT);
video_context_driver_set_flags(&flags);
RARCH_LOG("[GL]: Using Core GL context, setting up VAO...\n");
if (!gl_check_capability(GL_CAPS_VAO))
{
RARCH_ERR("[GL]: Failed to initialize VAOs.\n");
goto error;
}
}
if (!renderchain_gl_init_first(&gl->renderchain_driver,
&gl->renderchain_data))
{
RARCH_ERR("[GL]: Renderchain could not be initialized.\n");
goto error;
}
if (gl->renderchain_driver->restore_default_state)
gl->renderchain_driver->restore_default_state(gl, gl->renderchain_data);
if (hwr->context_type == RETRO_HW_CONTEXT_OPENGL_CORE)
if (gl->renderchain_driver->new_vao)
gl->renderchain_driver->new_vao(gl, gl->renderchain_data);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendEquation(GL_FUNC_ADD);
gl->hw_render_use = false;
gl->has_fbo = gl_check_capability(GL_CAPS_FBO);
if (gl->has_fbo && hwr->context_type != RETRO_HW_CONTEXT_NONE)
gl->hw_render_use = true;
if (!resolve_extensions(gl, ctx_driver->ident, video))
goto error;
#ifdef GL_DEBUG
gl_begin_debug(gl);
#endif
gl->vsync = video->vsync;
gl->fullscreen = video->fullscreen;
mode.width = 0;
mode.height = 0;
video_context_driver_get_video_size(&mode);
temp_width = mode.width;
temp_height = mode.height;
mode.width = 0;
mode.height = 0;
/* Get real known video size, which might have been altered by context. */
if (temp_width != 0 && temp_height != 0)
video_driver_set_size(&temp_width, &temp_height);
video_driver_get_size(&temp_width, &temp_height);
RARCH_LOG("[GL]: Using resolution %ux%u\n", temp_width, temp_height);
gl->vertex_ptr = hwr->bottom_left_origin
? vertexes : vertexes_flipped;
/* Better pipelining with GPU due to synchronous glSubTexImage.
* Multiple async PBOs would be an alternative,
* but still need multiple textures with PREV.
*/
gl->textures = 4;
if (gl->hw_render_use)
{
/* All on GPU, no need to excessively
* create textures. */
gl->textures = 1;
#ifdef GL_DEBUG
context_bind_hw_render(true);
gl_begin_debug(gl);
context_bind_hw_render(false);
#endif
}
gl->white_color_ptr = white_color;
if (!video_shader_driver_init_first())
{
RARCH_ERR("[GL:]: Shader driver initialization failed.\n");
goto error;
}
video_shader_driver_get_ident(&ident_info);
RARCH_LOG("[GL]: Default shader backend found: %s.\n", ident_info.ident);
if (!gl_shader_init(gl, ctx_driver, hwr))
{
RARCH_ERR("[GL]: Shader initialization failed.\n");
goto error;
}
{
unsigned minimum;
video_shader_ctx_texture_t texture_info;
video_shader_driver_get_prev_textures(&texture_info);
minimum = texture_info.id;
gl->textures = MAX(minimum + 1, gl->textures);
}
if (!video_shader_driver_info(&shader_info))
{
RARCH_ERR("[GL]: Shader driver info check failed.\n");
goto error;
}
RARCH_LOG("[GL]: Using %u textures.\n", gl->textures);
RARCH_LOG("[GL]: Loaded %u program(s).\n",
shader_info.num);
gl->tex_w = gl->tex_h = (RARCH_SCALE_BASE * video->input_scale);
gl->keep_aspect = video->force_aspect;
/* Apparently need to set viewport for passes
* when we aren't using FBOs. */
gl_set_shader_viewports(gl);
mip_level = 1;
gl->tex_mipmap = video_shader_driver_mipmap_input(&mip_level);
shader_filter.index = 1;
shader_filter.smooth = &force_smooth;
if (video_shader_driver_filter_type(&shader_filter))
gl->tex_min_filter = gl->tex_mipmap ? (force_smooth ?
GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_NEAREST)
: (force_smooth ? GL_LINEAR : GL_NEAREST);
else
gl->tex_min_filter = gl->tex_mipmap ?
(video->smooth ? GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_NEAREST)
: (video->smooth ? GL_LINEAR : GL_NEAREST);
gl->tex_mag_filter = min_filter_to_mag(gl->tex_min_filter);
wrap_info.idx = 1;
video_shader_driver_wrap_type(&wrap_info);
gl->wrap_mode = gl_wrap_type_to_enum(wrap_info.type);
gl_set_texture_fmts(gl, video->rgb32);
memcpy(gl->tex_info.coord, tex_coords, sizeof(gl->tex_info.coord));
gl->coords.vertex = gl->vertex_ptr;
gl->coords.tex_coord = gl->tex_info.coord;
gl->coords.color = gl->white_color_ptr;
gl->coords.lut_tex_coord = tex_coords;
gl->coords.vertices = 4;
/* Empty buffer that we use to clear out
* the texture with on res change. */
gl->empty_buf = calloc(sizeof(uint32_t), gl->tex_w * gl->tex_h);
gl->conv_buffer = calloc(sizeof(uint32_t), gl->tex_w * gl->tex_h);
if (!gl->conv_buffer)
goto error;
gl_init_textures(gl, video);
gl_init_textures_data(gl);
if (gl->renderchain_driver->init)
gl->renderchain_driver->init(gl, gl->renderchain_data, gl->tex_w, gl->tex_h);
if (gl->has_fbo)
{
if (gl->hw_render_use &&
gl->renderchain_driver->init_hw_render &&
!gl->renderchain_driver->init_hw_render(gl, gl->renderchain_data, gl->tex_w, gl->tex_h))
{
RARCH_ERR("[GL]: Hardware rendering context initialization failed.\n");
goto error;
}
}
inp.input = input;
inp.input_data = input_data;
video_context_driver_input_driver(&inp);
if (video->font_enable)
font_driver_init_osd(gl, false,
video->is_threaded,
FONT_DRIVER_RENDER_OPENGL_API);
/* Only bother with PBO readback if we're doing GPU recording.
* Check recording_is_enabled() and not
* driver.recording_data, because recording is
* not initialized yet.
*/
gl->pbo_readback_enable = settings->bools.video_gpu_record
&& recording_is_enabled();
if (gl->pbo_readback_enable && gl_init_pbo_readback(gl))
{
RARCH_LOG("[GL]: Async PBO readback enabled.\n");
}
if (!gl_check_error(&error_string))
{
RARCH_ERR("%s\n", error_string);
free(error_string);
goto error;
}
context_bind_hw_render(true);
return gl;
error:
video_context_driver_destroy();
gl_destroy_resources(gl);
return NULL;
}
static bool gl_alive(void *data)
{
gfx_ctx_size_t size_data;
unsigned temp_width = 0;
unsigned temp_height = 0;
bool ret = false;
bool quit = false;
bool resize = false;
gl_t *gl = (gl_t*)data;
/* Needed because some context drivers don't track their sizes */
video_driver_get_size(&temp_width, &temp_height);
size_data.quit = &quit;
size_data.resize = &resize;
size_data.width = &temp_width;
size_data.height = &temp_height;
if (video_context_driver_check_window(&size_data))
{
if (quit)
gl->quitting = true;
else if (resize)
gl->should_resize = true;
ret = !gl->quitting;
}
if (temp_width != 0 && temp_height != 0)
video_driver_set_size(&temp_width, &temp_height);
return ret;
}
static bool gl_suppress_screensaver(void *data, bool enable)
{
bool enabled = enable;
return video_context_driver_suppress_screensaver(&enabled);
}
static void gl_update_tex_filter_frame(gl_t *gl)
{
video_shader_ctx_filter_t shader_filter;
unsigned i, mip_level;
GLenum wrap_mode;
GLuint new_filt;
video_shader_ctx_wrap_t wrap_info;
bool smooth = false;
settings_t *settings = config_get_ptr();
wrap_info.idx = 0;
wrap_info.type = RARCH_WRAP_BORDER;
context_bind_hw_render(false);
shader_filter.index = 1;
shader_filter.smooth = &smooth;
if (!video_shader_driver_filter_type(&shader_filter))
smooth = settings->bools.video_smooth;
mip_level = 1;
wrap_info.idx = 1;
video_shader_driver_wrap_type(&wrap_info);
wrap_mode = gl_wrap_type_to_enum(wrap_info.type);
gl->tex_mipmap = video_shader_driver_mipmap_input(&mip_level);
gl->video_info.smooth = smooth;
new_filt = gl->tex_mipmap ? (smooth ?
GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_NEAREST)
: (smooth ? GL_LINEAR : GL_NEAREST);
if (new_filt == gl->tex_min_filter && wrap_mode == gl->wrap_mode)
return;
gl->tex_min_filter = new_filt;
gl->tex_mag_filter = min_filter_to_mag(gl->tex_min_filter);
gl->wrap_mode = wrap_mode;
for (i = 0; i < gl->textures; i++)
{
if (!gl->texture[i])
continue;
gl_bind_texture(gl->texture[i], gl->wrap_mode, gl->tex_mag_filter,
gl->tex_min_filter);
}
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
context_bind_hw_render(true);
}
static bool gl_set_shader(void *data,
enum rarch_shader_type type, const char *path)
{
#if defined(HAVE_GLSL) || defined(HAVE_CG)
unsigned textures;
video_shader_ctx_texture_t texture_info;
video_shader_ctx_init_t init_data;
gl_t *gl = (gl_t*)data;
if (!gl)
return false;
context_bind_hw_render(false);
if (type == RARCH_SHADER_NONE)
return false;
video_shader_driver_deinit();
switch (type)
{
#ifdef HAVE_GLSL
case RARCH_SHADER_GLSL:
break;
#endif
#ifdef HAVE_CG
case RARCH_SHADER_CG:
break;
#endif
default:
RARCH_ERR("[GL]: Cannot find shader core for path: %s.\n", path);
goto error;
}
if (gl->fbo_inited)
{
if (gl->renderchain_driver->deinit_fbo)
gl->renderchain_driver->deinit_fbo(gl, gl->renderchain_data);
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
}
init_data.shader_type = type;
init_data.shader = NULL;
init_data.data = gl;
init_data.path = path;
if (!video_shader_driver_init(&init_data))
{
init_data.path = NULL;
video_shader_driver_init(&init_data);
RARCH_WARN("[GL]: Failed to set multipass shader. Falling back to stock.\n");
goto error;
}
if (gl)
gl_update_tex_filter_frame(gl);
video_shader_driver_get_prev_textures(&texture_info);
textures = texture_info.id + 1;
if (textures > gl->textures) /* Have to reinit a bit. */
{
if (gl->hw_render_use && gl->fbo_inited &&
gl->renderchain_driver->deinit_hw_render)
gl->renderchain_driver->deinit_hw_render(gl, gl->renderchain_data);
glDeleteTextures(gl->textures, gl->texture);
#if defined(HAVE_PSGL)
glBindBuffer(GL_TEXTURE_REFERENCE_BUFFER_SCE, 0);
glDeleteBuffers(1, &gl->pbo);
#endif
gl->textures = textures;
RARCH_LOG("[GL]: Using %u textures.\n", gl->textures);
gl->tex_index = 0;
gl_init_textures(gl, &gl->video_info);
gl_init_textures_data(gl);
if (gl->hw_render_use && gl->renderchain_driver->init_hw_render)
gl->renderchain_driver->init_hw_render(gl, gl->renderchain_data,
gl->tex_w, gl->tex_h);
}
if (gl->renderchain_driver->init)
gl->renderchain_driver->init(gl, gl->renderchain_data,
gl->tex_w, gl->tex_h);
/* Apparently need to set viewport for passes when we aren't using FBOs. */
gl_set_shader_viewports(gl);
context_bind_hw_render(true);
#if defined(_WIN32) && !defined(_XBOX)
/* Shader dialog is disabled for now, until video_threaded issues are fixed.
shader_dlg_params_reload();*/
#endif
#endif
return true;
error:
context_bind_hw_render(true);
return false;
}
static void gl_viewport_info(void *data, struct video_viewport *vp)
{
gl_t *gl = (gl_t*)data;
if (!gl->renderchain_driver || !gl->renderchain_driver->viewport_info)
return;
gl->renderchain_driver->viewport_info(gl, gl->renderchain_data, vp);
}
static bool gl_read_viewport(void *data, uint8_t *buffer, bool is_idle)
{
gl_t *gl = (gl_t*)data;
if (!gl->renderchain_driver || !gl->renderchain_driver->read_viewport)
return false;
return gl->renderchain_driver->read_viewport(gl, gl->renderchain_data,
buffer, is_idle);
}
#if 0
#define READ_RAW_GL_FRAME_TEST
#endif
#if defined(READ_RAW_GL_FRAME_TEST)
static void* gl_read_frame_raw(void *data, unsigned *width_p,
unsigned *height_p, size_t *pitch_p)
{
gl_t *gl = (gl_t*)data;
unsigned width = gl->last_width[gl->tex_index];
unsigned height = gl->last_height[gl->tex_index];
size_t pitch = gl->tex_w * gl->base_size;
void* buffer = NULL;
void* buffer_texture = NULL;
if (gl->hw_render_use)
{
buffer = malloc(pitch * height);
if (!buffer)
return NULL;
}
buffer_texture = malloc(pitch * gl->tex_h);
if (!buffer_texture)
{
if (buffer)
free(buffer);
return NULL;
}
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
glGetTexImage(GL_TEXTURE_2D, 0,
gl->texture_type, gl->texture_fmt, buffer_texture);
*width_p = width;
*height_p = height;
*pitch_p = pitch;
if (gl->hw_render_use)
{
unsigned i;
for(i = 0; i < height ; i++)
memcpy((uint8_t*)buffer + i * pitch,
(uint8_t*)buffer_texture + (height - 1 - i) * pitch, pitch);
free(buffer_texture);
return buffer;
}
return buffer_texture;
}
#endif
#ifdef HAVE_OVERLAY
static bool gl_overlay_load(void *data,
const void *image_data, unsigned num_images)
{
unsigned i, j;
gl_t *gl = (gl_t*)data;
const struct texture_image *images =
(const struct texture_image*)image_data;
if (!gl)
return false;
context_bind_hw_render(false);
gl_free_overlay(gl);
gl->overlay_tex = (GLuint*)
calloc(num_images, sizeof(*gl->overlay_tex));
if (!gl->overlay_tex)
{
context_bind_hw_render(true);
return false;
}
gl->overlay_vertex_coord = (GLfloat*)
calloc(2 * 4 * num_images, sizeof(GLfloat));
gl->overlay_tex_coord = (GLfloat*)
calloc(2 * 4 * num_images, sizeof(GLfloat));
gl->overlay_color_coord = (GLfloat*)
calloc(4 * 4 * num_images, sizeof(GLfloat));
if ( !gl->overlay_vertex_coord
|| !gl->overlay_tex_coord
|| !gl->overlay_color_coord)
return false;
gl->overlays = num_images;
glGenTextures(num_images, gl->overlay_tex);
for (i = 0; i < num_images; i++)
{
unsigned alignment = video_pixel_get_alignment(images[i].width
* sizeof(uint32_t));
gl_load_texture_data(gl->overlay_tex[i],
RARCH_WRAP_EDGE, TEXTURE_FILTER_LINEAR,
alignment,
images[i].width, images[i].height, images[i].pixels,
sizeof(uint32_t));
/* Default. Stretch to whole screen. */
gl_overlay_tex_geom(gl, i, 0, 0, 1, 1);
gl_overlay_vertex_geom(gl, i, 0, 0, 1, 1);
for (j = 0; j < 16; j++)
gl->overlay_color_coord[16 * i + j] = 1.0f;
}
context_bind_hw_render(true);
return true;
}
static void gl_overlay_enable(void *data, bool state)
{
gl_t *gl = (gl_t*)data;
if (!gl)
return;
gl->overlay_enable = state;
if (gl->fullscreen)
video_context_driver_show_mouse(&state);
}
static void gl_overlay_full_screen(void *data, bool enable)
{
gl_t *gl = (gl_t*)data;
if (gl)
gl->overlay_full_screen = enable;
}
static void gl_overlay_set_alpha(void *data, unsigned image, float mod)
{
GLfloat *color = NULL;
gl_t *gl = (gl_t*)data;
if (!gl)
return;
color = (GLfloat*)&gl->overlay_color_coord[image * 16];
color[ 0 + 3] = mod;
color[ 4 + 3] = mod;
color[ 8 + 3] = mod;
color[12 + 3] = mod;
}
static const video_overlay_interface_t gl_overlay_interface = {
gl_overlay_enable,
gl_overlay_load,
gl_overlay_tex_geom,
gl_overlay_vertex_geom,
gl_overlay_full_screen,
gl_overlay_set_alpha,
};
static void gl_get_overlay_interface(void *data,
const video_overlay_interface_t **iface)
{
(void)data;
*iface = &gl_overlay_interface;
}
#endif
static retro_proc_address_t gl_get_proc_address(void *data, const char *sym)
{
gfx_ctx_proc_address_t proc_address;
proc_address.addr = NULL;
proc_address.sym = sym;
video_context_driver_get_proc_address(&proc_address);
return proc_address.addr;
}
static void gl_set_aspect_ratio(void *data, unsigned aspect_ratio_idx)
{
gl_t *gl = (gl_t*)data;
switch (aspect_ratio_idx)
{
case ASPECT_RATIO_SQUARE:
video_driver_set_viewport_square_pixel();
break;
case ASPECT_RATIO_CORE:
video_driver_set_viewport_core();
break;
case ASPECT_RATIO_CONFIG:
video_driver_set_viewport_config();
break;
default:
break;
}
video_driver_set_aspect_ratio_value(
aspectratio_lut[aspect_ratio_idx].value);
if (!gl)
return;
gl->keep_aspect = true;
gl->should_resize = true;
}
static void gl_apply_state_changes(void *data)
{
gl_t *gl = (gl_t*)data;
if (gl)
gl->should_resize = true;
}
static void gl_get_video_output_size(void *data,
unsigned *width, unsigned *height)
{
gfx_ctx_size_t size_data;
size_data.width = width;
size_data.height = height;
video_context_driver_get_video_output_size(&size_data);
}
static void gl_get_video_output_prev(void *data)
{
video_context_driver_get_video_output_prev();
}
static void gl_get_video_output_next(void *data)
{
video_context_driver_get_video_output_next();
}
static void video_texture_load_gl(
struct texture_image *ti,
enum texture_filter_type filter_type,
uintptr_t *id)
{
/* Generate the OpenGL texture object */
glGenTextures(1, (GLuint*)id);
gl_load_texture_data((GLuint)*id,
RARCH_WRAP_EDGE, filter_type,
4 /* TODO/FIXME - dehardcode */,
ti->width, ti->height, ti->pixels,
sizeof(uint32_t) /* TODO/FIXME - dehardcode */
);
}
#ifdef HAVE_THREADS
static int video_texture_load_wrap_gl_mipmap(void *data)
{
uintptr_t id = 0;
if (!data)
return 0;
video_texture_load_gl((struct texture_image*)data,
TEXTURE_FILTER_MIPMAP_LINEAR, &id);
return (int)id;
}
static int video_texture_load_wrap_gl(void *data)
{
uintptr_t id = 0;
if (!data)
return 0;
video_texture_load_gl((struct texture_image*)data,
TEXTURE_FILTER_LINEAR, &id);
return (int)id;
}
#endif
static uintptr_t gl_load_texture(void *video_data, void *data,
bool threaded, enum texture_filter_type filter_type)
{
uintptr_t id = 0;
#ifdef HAVE_THREADS
if (threaded)
{
custom_command_method_t func = video_texture_load_wrap_gl;
switch (filter_type)
{
case TEXTURE_FILTER_MIPMAP_LINEAR:
case TEXTURE_FILTER_MIPMAP_NEAREST:
func = video_texture_load_wrap_gl_mipmap;
break;
default:
break;
}
return video_thread_texture_load(data, func);
}
#endif
video_texture_load_gl((struct texture_image*)data, filter_type, &id);
return id;
}
static void gl_unload_texture(void *data, uintptr_t id)
{
GLuint glid;
if (!id)
return;
glid = (GLuint)id;
glDeleteTextures(1, &glid);
}
static void gl_set_coords(void *handle_data, void *shader_data,
const struct video_coords *coords)
{
gl_t *gl = (gl_t*)handle_data;
if (gl && gl->renderchain_driver->set_coords)
gl->renderchain_driver->set_coords(gl, gl->renderchain_data,
shader_data, coords);
}
static void gl_set_mvp(void *data, void *shader_data,
const void *mat_data)
{
gl_t *gl = (gl_t*)data;
if (gl && gl->renderchain_driver->set_mvp)
gl->renderchain_driver->set_mvp(gl, gl->renderchain_data,
shader_data, mat_data);
}
static const video_poke_interface_t gl_poke_interface = {
gl_set_coords,
gl_set_mvp,
gl_load_texture,
gl_unload_texture,
gl_set_video_mode,
NULL,
gl_get_video_output_size,
gl_get_video_output_prev,
gl_get_video_output_next,
gl_get_current_framebuffer,
gl_get_proc_address,
gl_set_aspect_ratio,
gl_apply_state_changes,
gl_set_texture_frame,
gl_set_texture_enable,
gl_set_osd_msg,
gl_show_mouse,
NULL,
gl_get_current_shader,
NULL, /* get_current_software_framebuffer */
NULL /* get_hw_render_interface */
};
static void gl_get_poke_interface(void *data,
const video_poke_interface_t **iface)
{
(void)data;
*iface = &gl_poke_interface;
}
video_driver_t video_gl = {
gl_init,
gl_frame,
gl_set_nonblock_state,
gl_alive,
NULL, /* focus */
gl_suppress_screensaver,
NULL, /* has_windowed */
gl_set_shader,
gl_free,
"gl",
gl_set_viewport_wrapper,
gl_set_rotation,
gl_viewport_info,
gl_read_viewport,
#if defined(READ_RAW_GL_FRAME_TEST)
gl_read_frame_raw,
#else
NULL,
#endif
#ifdef HAVE_OVERLAY
gl_get_overlay_interface,
#endif
gl_get_poke_interface,
gl_wrap_type_to_enum,
};
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