void draw_mbs()
{
H264Context *h = g_h;
GPUH264Context * const g = &h->gpu;
MpegEncContext * const s = &h->s;
int pic_width = 16*s->mb_width, pic_height = 16*s->mb_height;
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
GLuint refParam;
int i;
for(i = 0; i < 6; i++)
{
//g->shaders[i] = createGLSLProgram("shaders/base.vert", "shaders/fullpel.frag");
g->shaders[i] = createGLSLProgram(shaderfiles[i][0], shaderfiles[i][1]);
refParam = glGetUniformLocation(g->shaders[i], "dpb");
setupUniformInt(g->shaders[i], pic_width, "tex_width");
setupUniformInt(g->shaders[i], pic_height, "tex_height");
glActiveTexture(GL_TEXTURE1);
glBindTexture(tp_3d.texTarget, g->dpb_tex);
glUniform1i(refParam, 1);
checkGLErrors("Uniform setup");
glCallList(dispList);
glFinish();
}
}
/**
* Initialize vertex array objects, vertex buffer objects,
* clear color and depth clear value
*/
void init(void)
{
// Points of a triangle.
GLfloat points[] = {-1.0f, -0.75f, 0.0f, 1.0f,
0.0f, 0.75f, 0.0f, 1.0f,
1.0f, -0.75f, 0.0f, 1.0f };
#ifndef __APPLE__
// GLEW has trouble supporting the core profile
glewExperimental = GL_TRUE;
glewInit();
if(!GLEW_ARB_vertex_array_object)
{
fprintf(stderr, "ARB_vertex_array_object not available.\n");
terminate(EXIT_FAILURE);
}
#endif
_program = createGLSLProgram(_vertexSource, _fragmentSource);
// Get the location of the "vertex" attribute in the shader program
_vertexLocation = glGetAttribLocation(_program, "vertex");
// Generate a single handle for a vertex array object
glGenVertexArrays(1, &_vao);
// Generate a handle for a buffer object
glGenBuffers(1, &_vertices);
// Bind the vertex array object
glBindVertexArray(_vao);
// Make that vbo the current array buffer. Subsequent array buffer operations
// will affect this vbo.
glBindBuffer(GL_ARRAY_BUFFER, _vertices);
// Set the data for the vbo.
glBufferData(GL_ARRAY_BUFFER, // Target buffer object
3 * 4 * sizeof(GLfloat), // Size in bytes of the buffer
(GLfloat*) points, // Pointer to the data
GL_STATIC_DRAW); // Expected data usage pattern
// Enable the vertex attribute array for the currently bound vertex array object
glEnableVertexAttribArray(_vertexLocation);
// Specify the location and data format of the array of generic vertex attributes
glVertexAttribPointer(_vertexLocation, // Attribute location in the shader program
4, // Number of components per attribute
GL_FLOAT, // Data type of attribute
GL_FALSE, // GL_TRUE: values are normalized or
// GL_FALSE: values are converted to fixed point
0, // Stride
0); // Offset into VBO for this data
// Set the clear color
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// Set the depth clearing value
glClearDepth(1.0f);
glBindVertexArray(0);
}
