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Uses GL subtex.

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This commit is contained in:
Themaister 2010-12-26 04:15:12 +01:00
parent e318d04407
commit 7f3785ecf0
1 changed files with 45 additions and 5 deletions
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50
gfx/gl.c
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@ -25,6 +25,7 @@
#include "libsnes.hpp"
#include <stdio.h>
#include <sys/time.h>
#include <string.h>
#ifdef HAVE_CG
@ -65,6 +66,11 @@ typedef struct gl
#endif
GLuint texture;
GLuint tex_filter;
unsigned last_width;
unsigned last_height;
unsigned tex_w, tex_h;
GLfloat tex_coords[8];
} gl_t;
@ -252,17 +258,39 @@ static bool gl_frame(void *data, const uint16_t* frame, int width, int height, i
#if HAVE_CG
cgGLSetParameter2f(gl->cg_video_size, width, height);
cgGLSetParameter2f(gl->cg_texture_size, width, height);
cgGLSetParameter2f(gl->cg_texture_size, gl->tex_w, gl->tex_h);
cgGLSetParameter2f(gl->cg_output_size, gl_width, gl_height);
cgGLSetParameter2f(gl->cg_Vvideo_size, width, height);
cgGLSetParameter2f(gl->cg_Vtexture_size, width, height);
cgGLSetParameter2f(gl->cg_Vtexture_size, gl->tex_w, gl_tex_h);
cgGLSetParameter2f(gl->cg_Voutput_size, gl_width, gl_height);
#endif
if (width != gl->last_width || height != gl->last_height) // res change. need to clear out texture.
{
gl->last_width = width;
gl->last_height = height;
glPixelStorei(GL_UNPACK_ROW_LENGTH, width);
uint8_t *tmp = calloc(1, gl->tex_w * gl->tex_h * sizeof(uint16_t));
glTexSubImage2D(GL_TEXTURE_2D,
0, 0, 0, gl->tex_w, gl->tex_h, GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV, tmp);
free(tmp);
gl->tex_coords[0] = 0;
gl->tex_coords[1] = (GLfloat)height / gl->tex_h;
gl->tex_coords[2] = 0;
gl->tex_coords[3] = 0;
gl->tex_coords[4] = (GLfloat)width / gl->tex_w;
gl->tex_coords[5] = 0;
gl->tex_coords[6] = (GLfloat)width / gl->tex_w;
gl->tex_coords[7] = (GLfloat)height / gl->tex_h;
}
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch >> 1);
glTexImage2D(GL_TEXTURE_2D,
0, GL_RGBA, width, height, 0, GL_BGRA,
glTexSubImage2D(GL_TEXTURE_2D,
0, 0, 0, width, height, GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV, frame);
glDrawArrays(GL_QUADS, 0, 4);
@ -350,7 +378,19 @@ static void* gl_init(video_info_t *video, const input_driver_t **input)
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), vertexes);
glTexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), tex_coords);
memcpy(gl->tex_coords, tex_coords, sizeof(tex_coords));
glTexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), gl->tex_coords);
gl->tex_w = 256 * video->input_scale;
gl->tex_h = 256 * video->input_scale;
uint8_t *tmp = calloc(1, gl->tex_w * gl->tex_h * sizeof(uint16_t));
glTexImage2D(GL_TEXTURE_2D,
0, GL_RGBA, gl->tex_w, gl->tex_h, 0, GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV, tmp);
free(tmp);
gl->last_width = gl->tex_w;
gl->last_height = gl->tex_h;
#ifdef HAVE_CG
gl->cgCtx = cgCreateContext();