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Some performance fixes (PC doesn't seem to like buffers :P

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This commit is contained in:
Themaister 2010-11-09 00:01:17 +01:00
parent 79905252dd
commit e703b37501
3 changed files with 25 additions and 29 deletions
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2
config.h
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@ -76,7 +76,7 @@ static const bool force_aspect = true;
////////////////////////
// If you change this to something other than FILTER_NONE, make sure that you build the filter module in config.mk.
#define VIDEO_FILTER FILTER_NTSC
#define VIDEO_FILTER FILTER_NONE
////////////////

2
config.mk
View File

@ -1,6 +1,6 @@
BUILD_OPENGL = 1
BUILD_FILTER = 1
BUILD_FILTER = 0
BUILD_RSOUND = 0
BUILD_OSS = 0

48
gl.c
View File

@ -24,11 +24,18 @@
#include <stdio.h>
#include <sys/time.h>
static GLuint texture, pbo, vbo;
static uint8_t *gl_buffer, *vertex_buf;
static GLuint texture;
static uint8_t *gl_buffer;
static bool keep_aspect = true;
static GLuint tex_filter;
static const GLfloat vertexes[] = {
0, 0, 0,
0, 1, 0,
1, 1, 0,
1, 0, 0
};
typedef struct gl
{
bool vsync;
@ -212,11 +219,19 @@ static bool gl_frame(void *data, const uint16_t* frame, int width, int height, i
(float)width/gl->real_x, 0,
(float)width/gl->real_x, (float)height/gl->real_y
};
glTexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), tex_coords);
static int pitch_pixels = 1024;
if (pitch_pixels != (pitch >> 1))
{
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch >> 1);
pitch_pixels = pitch >> 1;
}
glBufferSubData(GL_ARRAY_BUFFER, 128, sizeof(tex_coords), tex_coords);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, height * pitch, frame);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, NULL);
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);
show_fps();
@ -230,11 +245,8 @@ static void gl_free(void *data)
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDeleteTextures(1, &texture);
glDeleteBuffers(1, &pbo);
glDeleteBuffers(1, &vbo);
glfwTerminate();
free(gl_buffer);
free(vertex_buf);
}
static void gl_set_nonblock_state(void *data, bool state)
@ -281,8 +293,7 @@ static void* gl_init(video_info_t *video, const input_driver_t **input)
gl->vsync = video->vsync;
gl_buffer = calloc(1, 256 * 256 * 2 * video->input_scale * video->input_scale);
vertex_buf = calloc(1, 256);
if ( !gl_buffer || !vertex_buf )
if (!gl_buffer)
{
fprintf(stderr, "Couldn't allocate memory :<\n");
exit(1);
@ -303,36 +314,21 @@ static void* gl_init(video_info_t *video, const input_driver_t **input)
glLoadIdentity();
glGenTextures(1, &texture);
glGenBuffers(1, &pbo);
glGenBuffers(1, &vbo);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
glBufferData(GL_PIXEL_UNPACK_BUFFER, 256 * 256 * 2 * video->input_scale * video->input_scale, gl_buffer, GL_STREAM_DRAW);
glBindTexture(GL_TEXTURE_2D, texture);
glTexImage2D(GL_TEXTURE_2D,
0, GL_RGB, 256 * video->input_scale, 256 * video->input_scale, 0, GL_BGRA,
GL_UNSIGNED_SHORT_1_5_5_5_REV, NULL);
GL_UNSIGNED_SHORT_1_5_5_5_REV, gl_buffer);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, tex_filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, tex_filter);
GLfloat vertexes[] = {
0, 0, 0,
0, 1, 0,
1, 1, 0,
1, 0, 0
};
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, 256, vertex_buf, GL_STREAM_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertexes), vertexes);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 1024);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), NULL);
glTexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), (void*)128);
glVertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), vertexes);
*input = &input_glfw;
return gl;