GLuint IJK_GLES2_loadShader(GLenum shader_type, const char *shader_source)
{
assert(shader_source);
GLuint shader = glCreateShader(shader_type); IJK_GLES2_checkError("glCreateShader");
if (!shader)
return 0;
assert(shader_source);
glShaderSource(shader, 1, &shader_source, NULL); IJK_GLES2_checkError_TRACE("glShaderSource");
glCompileShader(shader); IJK_GLES2_checkError_TRACE("glCompileShader");
GLint compile_status = 0;
glGetShaderiv(shader, GL_COMPILE_STATUS, &compile_status);
if (!compile_status)
goto fail;
return shader;
fail:
if (shader) {
IJK_GLES2_printShaderInfo(shader);
glDeleteShader(shader);
}
return 0;
}
static EGLBoolean IJK_EGL_prepareRenderer(IJK_EGL* egl, SDL_VoutOverlay *overlay)
{
assert(egl);
assert(egl->opaque);
IJK_EGL_Opaque *opaque = egl->opaque;
// FIXME: check render against overlay
if (!IJK_GLES2_Renderer_isValid(opaque->renderer)) {
opaque->renderer = IJK_GLES2_Renderer_create(overlay);
if (!opaque->renderer) {
ALOGE("[EGL] Could not create render.");
return EGL_FALSE;
}
if (!IJK_GLES2_Renderer_use(opaque->renderer)) {
ALOGE("[EGL] Could not use render.");
IJK_GLES2_Renderer_freeP(&opaque->renderer);
return EGL_FALSE;
}
}
if (!IJK_EGL_setSurfaceSize(egl, overlay->w, overlay->h)) {
ALOGE("[EGL] IJK_EGL_setSurfaceSize(%d, %d) failed\n", overlay->w, overlay->h);
return EGL_FALSE;
}
glViewport(0, 0, egl->width, egl->height); IJK_GLES2_checkError_TRACE("glViewport");
return EGL_TRUE;
}
static GLboolean rgb_use(IJK_GLES2_Renderer *renderer)
{
ALOGI("use render rgb\n");
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glUseProgram(renderer->program); IJK_GLES2_checkError_TRACE("glUseProgram");
if (0 == renderer->plane_textures[0])
glGenTextures(1, renderer->plane_textures);
for (int i = 0; i < 1; ++i) {
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, renderer->plane_textures[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glUniform1i(renderer->us2_sampler[i], i);
}
return GL_TRUE;
}
IJK_GLES2_Renderer *IJK_GLES2_Renderer_create_rgb565()
{
ALOGI("create render rgb565\n");
IJK_GLES2_Renderer *renderer = IJK_GLES2_Renderer_create_base(IJK_GLES2_getFragmentShader_rgb());
if (!renderer)
goto fail;
renderer->us2_sampler[0] = glGetUniformLocation(renderer->program, "us2_SamplerX"); IJK_GLES2_checkError_TRACE("glGetUniformLocation(us2_SamplerX)");
renderer->func_use = rgb_use;
renderer->func_getBufferWidth = rgb565_getBufferWidth;
renderer->func_uploadTexture = rgb565_uploadTexture;
return renderer;
fail:
IJK_GLES2_Renderer_free(renderer);
return NULL;
}
