mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-04 22:46:46 +00:00
407 lines
11 KiB
C
407 lines
11 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef __GL_COMMON_H
|
|
#define __GL_COMMON_H
|
|
|
|
#include "../general.h"
|
|
#include "fonts/fonts.h"
|
|
#include <gfx/math/matrix_4x4.h>
|
|
#include "gfx_context.h"
|
|
#include <gfx/scaler/scaler.h>
|
|
#include "fonts/gl_font.h"
|
|
#include "shader/shader_context.h"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "../config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#ifdef HAVE_EGL
|
|
#include <EGL/egl.h>
|
|
#include <EGL/eglext.h>
|
|
#endif
|
|
|
|
#include <glsym/glsym.h>
|
|
|
|
#define context_bind_hw_render(gl, enable) if (gl->shared_context_use && gl->ctx_driver->bind_hw_render) gl->ctx_driver->bind_hw_render(gl, enable)
|
|
|
|
#if (!defined(HAVE_OPENGLES) || defined(HAVE_OPENGLES3))
|
|
#define HAVE_GL_ASYNC_READBACK
|
|
#endif
|
|
|
|
#if defined(HAVE_PSGL)
|
|
#define RARCH_GL_FRAMEBUFFER GL_FRAMEBUFFER_OES
|
|
#define RARCH_GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE_OES
|
|
#define RARCH_GL_COLOR_ATTACHMENT0 GL_COLOR_ATTACHMENT0_EXT
|
|
#elif defined(OSX_PPC)
|
|
#define RARCH_GL_FRAMEBUFFER GL_FRAMEBUFFER_EXT
|
|
#define RARCH_GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE_EXT
|
|
#define RARCH_GL_COLOR_ATTACHMENT0 GL_COLOR_ATTACHMENT0_EXT
|
|
#else
|
|
#define RARCH_GL_FRAMEBUFFER GL_FRAMEBUFFER
|
|
#define RARCH_GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE
|
|
#define RARCH_GL_COLOR_ATTACHMENT0 GL_COLOR_ATTACHMENT0
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGLES2)
|
|
#define RARCH_GL_RENDERBUFFER GL_RENDERBUFFER
|
|
#define RARCH_GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_OES
|
|
#define RARCH_GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT
|
|
#define RARCH_GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT
|
|
#elif defined(OSX_PPC)
|
|
#define RARCH_GL_RENDERBUFFER GL_RENDERBUFFER_EXT
|
|
#define RARCH_GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_EXT
|
|
#define RARCH_GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT_EXT
|
|
#define RARCH_GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT_EXT
|
|
#elif defined(HAVE_PSGL) && !defined(HAVE_GCMGL)
|
|
#define RARCH_GL_RENDERBUFFER GL_RENDERBUFFER_OES
|
|
#define RARCH_GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_SCE
|
|
#define RARCH_GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT_OES
|
|
#define RARCH_GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT_OES
|
|
#else
|
|
#define RARCH_GL_RENDERBUFFER GL_RENDERBUFFER
|
|
#define RARCH_GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8
|
|
#define RARCH_GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT
|
|
#define RARCH_GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT
|
|
#endif
|
|
|
|
#ifdef OSX_PPC
|
|
#define RARCH_GL_MAX_RENDERBUFFER_SIZE GL_MAX_RENDERBUFFER_SIZE_EXT
|
|
#elif defined(HAVE_PSGL) && !defined(HAVE_GCMGL)
|
|
#define RARCH_GL_MAX_RENDERBUFFER_SIZE GL_MAX_RENDERBUFFER_SIZE_OES
|
|
#else
|
|
#define RARCH_GL_MAX_RENDERBUFFER_SIZE GL_MAX_RENDERBUFFER_SIZE
|
|
#endif
|
|
|
|
#if defined(HAVE_PSGL)
|
|
#define glGenerateMipmap glGenerateMipmapOES
|
|
#endif
|
|
|
|
#ifdef HAVE_FBO
|
|
|
|
#if defined(__APPLE__) || defined(HAVE_PSGL)
|
|
#define GL_RGBA32F GL_RGBA32F_ARB
|
|
#endif
|
|
|
|
#endif
|
|
|
|
static inline bool gl_check_error(void)
|
|
{
|
|
int error = glGetError();
|
|
switch (error)
|
|
{
|
|
case GL_INVALID_ENUM:
|
|
RARCH_ERR("GL: Invalid enum.\n");
|
|
break;
|
|
case GL_INVALID_VALUE:
|
|
RARCH_ERR("GL: Invalid value.\n");
|
|
break;
|
|
case GL_INVALID_OPERATION:
|
|
RARCH_ERR("GL: Invalid operation.\n");
|
|
break;
|
|
case GL_OUT_OF_MEMORY:
|
|
RARCH_ERR("GL: Out of memory.\n");
|
|
break;
|
|
case GL_NO_ERROR:
|
|
return true;
|
|
}
|
|
|
|
RARCH_ERR("Non specified GL error.\n");
|
|
return false;
|
|
}
|
|
|
|
struct gl_fbo_rect
|
|
{
|
|
unsigned img_width;
|
|
unsigned img_height;
|
|
unsigned max_img_width;
|
|
unsigned max_img_height;
|
|
unsigned width;
|
|
unsigned height;
|
|
};
|
|
|
|
struct gl_ortho
|
|
{
|
|
GLfloat left;
|
|
GLfloat right;
|
|
GLfloat bottom;
|
|
GLfloat top;
|
|
GLfloat znear;
|
|
GLfloat zfar;
|
|
};
|
|
|
|
struct gl_tex_info
|
|
{
|
|
GLuint tex;
|
|
GLfloat input_size[2];
|
|
GLfloat tex_size[2];
|
|
GLfloat coord[8];
|
|
};
|
|
|
|
struct gl_coords
|
|
{
|
|
const GLfloat *vertex;
|
|
const GLfloat *color;
|
|
const GLfloat *tex_coord;
|
|
const GLfloat *lut_tex_coord;
|
|
unsigned vertices;
|
|
};
|
|
|
|
#define MAX_SHADERS 16
|
|
#define MAX_TEXTURES 8
|
|
|
|
typedef struct gl
|
|
{
|
|
const gfx_ctx_driver_t *ctx_driver;
|
|
const shader_backend_t *shader;
|
|
|
|
bool vsync;
|
|
GLuint texture[MAX_TEXTURES];
|
|
unsigned tex_index; /* For use with PREV. */
|
|
unsigned textures;
|
|
struct gl_tex_info tex_info;
|
|
struct gl_tex_info prev_info[MAX_TEXTURES];
|
|
GLuint tex_mag_filter;
|
|
GLuint tex_min_filter;
|
|
bool tex_mipmap;
|
|
|
|
void *empty_buf;
|
|
|
|
void *conv_buffer;
|
|
struct scaler_ctx scaler;
|
|
|
|
unsigned frame_count;
|
|
|
|
#ifdef HAVE_FBO
|
|
/* Render-to-texture, multipass shaders. */
|
|
GLuint fbo[MAX_SHADERS];
|
|
GLuint fbo_texture[MAX_SHADERS];
|
|
struct gl_fbo_rect fbo_rect[MAX_SHADERS];
|
|
struct gfx_fbo_scale fbo_scale[MAX_SHADERS];
|
|
int fbo_pass;
|
|
bool fbo_inited;
|
|
|
|
GLuint hw_render_fbo[MAX_TEXTURES];
|
|
GLuint hw_render_depth[MAX_TEXTURES];
|
|
bool hw_render_fbo_init;
|
|
bool hw_render_depth_init;
|
|
bool has_fp_fbo;
|
|
bool has_srgb_fbo;
|
|
bool has_srgb_fbo_gles3;
|
|
#endif
|
|
bool hw_render_use;
|
|
bool shared_context_use;
|
|
|
|
bool should_resize;
|
|
bool quitting;
|
|
bool fullscreen;
|
|
bool keep_aspect;
|
|
unsigned rotation;
|
|
|
|
unsigned full_x, full_y;
|
|
|
|
unsigned win_width;
|
|
unsigned win_height;
|
|
struct rarch_viewport vp;
|
|
unsigned vp_out_width;
|
|
unsigned vp_out_height;
|
|
unsigned last_width[MAX_TEXTURES];
|
|
unsigned last_height[MAX_TEXTURES];
|
|
unsigned tex_w, tex_h;
|
|
math_matrix_4x4 mvp, mvp_no_rot;
|
|
|
|
struct gl_coords coords;
|
|
const GLfloat *vertex_ptr;
|
|
const GLfloat *white_color_ptr;
|
|
|
|
GLuint pbo;
|
|
|
|
GLenum internal_fmt;
|
|
GLenum texture_type; /* RGB565 or ARGB */
|
|
GLenum texture_fmt;
|
|
GLenum wrap_mode;
|
|
unsigned base_size; /* 2 or 4 */
|
|
#ifdef HAVE_OPENGLES
|
|
bool support_unpack_row_length;
|
|
#else
|
|
bool have_es2_compat;
|
|
#endif
|
|
|
|
/* Fonts */
|
|
const gl_font_renderer_t *font_driver;
|
|
void *font_handle;
|
|
|
|
bool egl_images;
|
|
video_info_t video_info;
|
|
|
|
#ifdef HAVE_OVERLAY
|
|
unsigned overlays;
|
|
bool overlay_enable;
|
|
bool overlay_full_screen;
|
|
GLuint *overlay_tex;
|
|
GLfloat *overlay_vertex_coord;
|
|
GLfloat *overlay_tex_coord;
|
|
GLfloat *overlay_color_coord;
|
|
#endif
|
|
|
|
#ifdef HAVE_GL_ASYNC_READBACK
|
|
/* PBOs used for asynchronous viewport readbacks. */
|
|
GLuint pbo_readback[4];
|
|
bool pbo_readback_valid[4];
|
|
bool pbo_readback_enable;
|
|
unsigned pbo_readback_index;
|
|
struct scaler_ctx pbo_readback_scaler;
|
|
#endif
|
|
void *readback_buffer_screenshot;
|
|
|
|
#if defined(HAVE_MENU)
|
|
GLuint menu_texture;
|
|
bool menu_texture_enable;
|
|
bool menu_texture_full_screen;
|
|
GLfloat menu_texture_alpha;
|
|
#endif
|
|
|
|
#ifdef HAVE_GL_SYNC
|
|
#define MAX_FENCES 4
|
|
bool have_sync;
|
|
GLsync fences[MAX_FENCES];
|
|
unsigned fence_count;
|
|
#endif
|
|
|
|
bool core_context;
|
|
GLuint vao;
|
|
} gl_t;
|
|
|
|
#if defined(HAVE_PSGL)
|
|
#define RARCH_GL_INTERNAL_FORMAT32 GL_ARGB_SCE
|
|
#define RARCH_GL_INTERNAL_FORMAT16 GL_RGB5 /* TODO: Verify if this is really 565 or just 555. */
|
|
#define RARCH_GL_TEXTURE_TYPE32 GL_BGRA
|
|
#define RARCH_GL_TEXTURE_TYPE16 GL_BGRA
|
|
#define RARCH_GL_FORMAT32 GL_UNSIGNED_INT_8_8_8_8_REV
|
|
#define RARCH_GL_FORMAT16 GL_RGB5
|
|
#elif defined(HAVE_OPENGLES)
|
|
/* Imgtec/SGX headers have this missing. */
|
|
#ifndef GL_BGRA_EXT
|
|
#define GL_BGRA_EXT 0x80E1
|
|
#endif
|
|
#ifdef IOS
|
|
/* Stupid Apple. */
|
|
#define RARCH_GL_INTERNAL_FORMAT32 GL_RGBA
|
|
#else
|
|
#define RARCH_GL_INTERNAL_FORMAT32 GL_BGRA_EXT
|
|
#endif
|
|
#define RARCH_GL_INTERNAL_FORMAT16 GL_RGB
|
|
#define RARCH_GL_TEXTURE_TYPE32 GL_BGRA_EXT
|
|
#define RARCH_GL_TEXTURE_TYPE16 GL_RGB
|
|
#define RARCH_GL_FORMAT32 GL_UNSIGNED_BYTE
|
|
#define RARCH_GL_FORMAT16 GL_UNSIGNED_SHORT_5_6_5
|
|
#else
|
|
/* On desktop, we always use 32-bit. */
|
|
#define RARCH_GL_INTERNAL_FORMAT32 GL_RGBA8
|
|
#define RARCH_GL_INTERNAL_FORMAT16 GL_RGBA8
|
|
#define RARCH_GL_TEXTURE_TYPE32 GL_BGRA
|
|
#define RARCH_GL_TEXTURE_TYPE16 GL_BGRA
|
|
#define RARCH_GL_FORMAT32 GL_UNSIGNED_INT_8_8_8_8_REV
|
|
#define RARCH_GL_FORMAT16 GL_UNSIGNED_INT_8_8_8_8_REV
|
|
|
|
/* GL_RGB565 internal format isn't in desktop GL
|
|
* until 4.1 core (ARB_ES2_compatibility).
|
|
* Check for this. */
|
|
#ifndef GL_RGB565
|
|
#define GL_RGB565 0x8D62
|
|
#endif
|
|
#define RARCH_GL_INTERNAL_FORMAT16_565 GL_RGB565
|
|
#define RARCH_GL_TEXTURE_TYPE16_565 GL_RGB
|
|
#define RARCH_GL_FORMAT16_565 GL_UNSIGNED_SHORT_5_6_5
|
|
#endif
|
|
|
|
/* Platform specific workarounds/hacks. */
|
|
#if defined(__CELLOS_LV2__)
|
|
#define NO_GL_READ_PIXELS
|
|
|
|
/* Performance hacks. */
|
|
#ifdef HAVE_GCMGL
|
|
|
|
extern GLvoid* glMapBufferTextureReferenceRA( GLenum target, GLenum access );
|
|
|
|
extern GLboolean glUnmapBufferTextureReferenceRA( GLenum target );
|
|
|
|
extern void glBufferSubDataTextureReferenceRA( GLenum target,
|
|
GLintptr offset, GLsizeiptr size, const GLvoid *data );
|
|
#define glMapBuffer(target, access) glMapBufferTextureReferenceRA(target, access)
|
|
#define glUnmapBuffer(target) glUnmapBufferTextureReferenceRA(target)
|
|
#define glBufferSubData(target, offset, size, data) glBufferSubDataTextureReferenceRA(target, offset, size, data)
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGL_MODERN) || defined(HAVE_OPENGLES2) || defined(HAVE_PSGL)
|
|
#ifndef NO_GL_FF_VERTEX
|
|
#define NO_GL_FF_VERTEX
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGL_MODERN) || defined(HAVE_OPENGLES2) || defined(HAVE_PSGL)
|
|
#ifndef NO_GL_FF_MATRIX
|
|
#define NO_GL_FF_MATRIX
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGLES2) /* TODO: Figure out exactly what. */
|
|
#define NO_GL_CLAMP_TO_BORDER
|
|
#endif
|
|
|
|
#if defined(HAVE_OPENGLES)
|
|
#ifndef GL_UNPACK_ROW_LENGTH
|
|
#define GL_UNPACK_ROW_LENGTH 0x0CF2
|
|
#endif
|
|
|
|
#ifndef GL_SRGB_ALPHA_EXT
|
|
#define GL_SRGB_ALPHA_EXT 0x8C42
|
|
#endif
|
|
#endif
|
|
|
|
/* Fall back to FF-style if needed and possible. */
|
|
#define gl_ff_vertex(coords) \
|
|
glClientActiveTexture(GL_TEXTURE1); \
|
|
glTexCoordPointer(2, GL_FLOAT, 0, coords->lut_tex_coord); \
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY); \
|
|
glClientActiveTexture(GL_TEXTURE0); \
|
|
glVertexPointer(2, GL_FLOAT, 0, coords->vertex); \
|
|
glEnableClientState(GL_VERTEX_ARRAY); \
|
|
glColorPointer(4, GL_FLOAT, 0, coords->color); \
|
|
glEnableClientState(GL_COLOR_ARRAY); \
|
|
glTexCoordPointer(2, GL_FLOAT, 0, coords->tex_coord); \
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY)
|
|
|
|
/* Fall back to FF-style if needed and possible. */
|
|
#define gl_ff_matrix(mat) \
|
|
glMatrixMode(GL_PROJECTION); \
|
|
glLoadMatrixf(mat->data); \
|
|
glMatrixMode(GL_MODELVIEW); \
|
|
glLoadIdentity()
|
|
|
|
void gl_set_viewport(gl_t *gl, unsigned width, unsigned height,
|
|
bool force_full, bool allow_rotate);
|
|
|
|
void gl_load_texture_data(GLuint obj, const struct texture_image *img,
|
|
GLenum wrap, bool linear, bool mipmap);
|
|
|
|
bool gl_load_luts(const struct gfx_shader *generic_shader,
|
|
GLuint *lut_textures);
|
|
|
|
#endif
|