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Update some stuff.

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This commit is contained in:
Themaister 2010-11-09 00:13:57 +01:00
parent 0e9dd13601
commit 31c303e295
1 changed files with 22 additions and 15 deletions
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37
gl.c
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@ -36,6 +36,13 @@ static const GLfloat vertexes[] = {
1, 0, 0
};
static GLfloat tex_coords[] = {
0, 224.0/512,
0, 0,
0.5, 0,
0.5, 224.0/512
};
typedef struct gl
{
bool vsync;
@ -213,24 +220,23 @@ static bool gl_frame(void *data, const uint16_t* frame, int width, int height, i
glClear(GL_COLOR_BUFFER_BIT);
GLfloat tex_coords[] = {
0, (float)height/gl->real_y,
0, 0,
(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))
static int last_width = 256;
static int last_height = 224;
if (width != last_width || height != last_height)
{
tex_coords[0] = 0;
tex_coords[1] = (float)height/gl->real_y;
tex_coords[2] = 0;
tex_coords[3] = 0;
tex_coords[4] = (float)width/gl->real_x;
tex_coords[5] = 0;
tex_coords[6] = (float)width/gl->real_x;
tex_coords[7] = (float)height/gl->real_y;
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch >> 1);
pitch_pixels = pitch >> 1;
last_width = width;
last_height = height;
}
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, frame);
glDrawArrays(GL_QUADS, 0, 4);
@ -303,7 +309,7 @@ static void* gl_init(video_info_t *video, const input_driver_t **input)
gl->real_y = video->input_scale * 256;
glEnable(GL_TEXTURE_2D);
glEnable(GL_DITHER);
glDisable(GL_DITHER);
glDisable(GL_DEPTH_TEST);
glColor3f(1, 1, 1);
glClearColor(0, 0, 0, 0);
@ -329,6 +335,7 @@ 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);
*input = &input_glfw;
return gl;