void GPU_texture_bind(GPUTexture *tex, int number)
{
GLenum arbnumber;
if (number >= GG.maxtextures) {
GPU_print_error("Not enough texture slots.");
return;
}
if (number == -1)
return;
GPU_print_error("Pre Texture Bind");
arbnumber = (GLenum)((GLuint)GL_TEXTURE0_ARB + number);
if (number != 0) glActiveTextureARB(arbnumber);
if (tex->bindcode != 0) {
glBindTexture(tex->target, tex->bindcode);
}
else
GPU_invalid_tex_bind(tex->target);
glEnable(tex->target);
if (number != 0) glActiveTextureARB(GL_TEXTURE0_ARB);
tex->number = number;
GPU_print_error("Post Texture Bind");
}
void GPU_shader_uniform_texture(GPUShader *UNUSED(shader), int location, GPUTexture *tex)
{
GLenum arbnumber;
if (tex->number >= GG.maxtextures) {
GPU_print_error("Not enough texture slots.");
return;
}
if (tex->number == -1)
return;
if (location == -1)
return;
GPU_print_error("Pre Uniform Texture");
arbnumber = (GLenum)((GLuint)GL_TEXTURE0_ARB + tex->number);
if (tex->number != 0) glActiveTextureARB(arbnumber);
glBindTexture(tex->target, tex->bindcode);
glUniform1iARB(location, tex->number);
glEnable(tex->target);
if (tex->number != 0) glActiveTextureARB(GL_TEXTURE0_ARB);
GPU_print_error("Post Uniform Texture");
}
void GPU_texture_bind(GPUTexture *tex, int number)
{
GLenum arbnumber;
if (number >= GG.maxtextures) {
GPU_print_error("Not enough texture slots.");
return;
}
if (tex->fb) {
if (tex->fb->object == GG.currentfb) {
fprintf(stderr, "Feedback loop warning!: Attempting to bind texture attached to current framebuffer!\n");
}
}
if (number < 0)
return;
GPU_print_error("Pre Texture Bind");
arbnumber = (GLenum)((GLuint)GL_TEXTURE0_ARB + number);
if (number != 0) glActiveTextureARB(arbnumber);
if (tex->bindcode != 0) {
glBindTexture(tex->target, tex->bindcode);
}
else
GPU_invalid_tex_bind(tex->target);
glEnable(tex->target);
if (number != 0) glActiveTextureARB(GL_TEXTURE0_ARB);
tex->number = number;
GPU_print_error("Post Texture Bind");
}
void GPU_shader_uniform_int(GPUShader *UNUSED(shader), int location, int value)
{
if (location == -1)
return;
GPU_print_error("Pre Uniform Int");
glUniform1iARB(location, value);
GPU_print_error("Post Uniform Int");
}
int GPU_shader_get_attribute(GPUShader *shader, const char *name)
{
int index;
GPU_print_error("Pre Get Attribute");
index = glGetAttribLocationARB(shader->object, name);
GPU_print_error("Post Get Attribute");
return index;
}
void GPU_shader_uniform_vector(GPUShader *UNUSED(shader), int location, int length, int arraysize, float *value)
{
if (location == -1)
return;
GPU_print_error("Pre Uniform Vector");
if (length == 1) glUniform1fvARB(location, arraysize, value);
else if (length == 2) glUniform2fvARB(location, arraysize, value);
else if (length == 3) glUniform3fvARB(location, arraysize, value);
else if (length == 4) glUniform4fvARB(location, arraysize, value);
else if (length == 9) glUniformMatrix3fvARB(location, arraysize, 0, value);
else if (length == 16) glUniformMatrix4fvARB(location, arraysize, 0, value);
GPU_print_error("Post Uniform Vector");
}
GPUTexture *GPU_texture_from_preview(PreviewImage *prv, int mipmap)
{
GPUTexture *tex = prv->gputexture[0];
GLint w, h, lastbindcode;
GLuint bindcode = 0;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &lastbindcode);
if (tex)
bindcode = tex->bindcode;
/* this binds a texture, so that's why to restore it */
if (bindcode == 0) {
GPU_create_gl_tex(&bindcode, prv->rect[0], NULL, prv->w[0], prv->h[0], mipmap, 0, NULL);
}
if (tex) {
tex->bindcode = bindcode;
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return tex;
}
/* error binding anything */
if (!bindcode) {
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return NULL;
}
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->bindcode = bindcode;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_2D;
prv->gputexture[0]= tex;
if (!glIsTexture(tex->bindcode)) {
GPU_print_error("Blender Texture");
}
else {
glBindTexture(GL_TEXTURE_2D, tex->bindcode);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
tex->w = w;
tex->h = h;
}
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return tex;
}
void GPU_texture_unbind(GPUTexture *tex)
{
GLenum arbnumber;
if (tex->number >= GG.maxtextures) {
GPU_print_error("Not enough texture slots.");
return;
}
if (tex->number == -1)
return;
GPU_print_error("Pre Texture Unbind");
arbnumber = (GLenum)((GLuint)GL_TEXTURE0_ARB + tex->number);
if (tex->number != 0) glActiveTextureARB(arbnumber);
glBindTexture(tex->target, 0);
glDisable(tex->target);
if (tex->number != 0) glActiveTextureARB(GL_TEXTURE0_ARB);
tex->number = -1;
GPU_print_error("Post Texture Unbind");
}
GPUTexture *GPU_texture_from_blender(Image *ima, ImageUser *iuser, int isdata, double time, int mipmap)
{
GPUTexture *tex;
GLint w, h, border, lastbindcode, bindcode;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &lastbindcode);
GPU_update_image_time(ima, time);
/* this binds a texture, so that's why to restore it with lastbindcode */
bindcode = GPU_verify_image(ima, iuser, 0, 0, mipmap, isdata);
if (ima->gputexture) {
ima->gputexture->bindcode = bindcode;
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return ima->gputexture;
}
if (!bindcode) {
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return NULL;
}
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->bindcode = bindcode;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_2D;
tex->fromblender = 1;
ima->gputexture= tex;
if (!glIsTexture(tex->bindcode)) {
GPU_print_error("Blender Texture");
}
else {
glBindTexture(GL_TEXTURE_2D, tex->bindcode);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BORDER, &border);
tex->w = w - border;
tex->h = h - border;
}
glBindTexture(GL_TEXTURE_2D, lastbindcode);
return tex;
}
GPUTexture *GPU_texture_create_3D(int w, int h, int depth, int channels, float *fpixels)
{
GPUTexture *tex;
GLenum type, format, internalformat;
void *pixels = NULL;
float vfBorderColor[4] = {0.0f, 0.0f, 0.0f, 0.0f};
if (!GLEW_VERSION_1_2)
return NULL;
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->w = w;
tex->h = h;
tex->depth = depth;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_3D;
glGenTextures(1, &tex->bindcode);
if (!tex->bindcode) {
fprintf(stderr, "GPUTexture: texture create failed: %d\n",
(int)glGetError());
GPU_texture_free(tex);
return NULL;
}
if (!GPU_non_power_of_two_support()) {
tex->w = power_of_2_max_i(tex->w);
tex->h = power_of_2_max_i(tex->h);
tex->depth = power_of_2_max_i(tex->depth);
}
tex->number = 0;
glBindTexture(tex->target, tex->bindcode);
GPU_print_error("3D glBindTexture");
type = GL_FLOAT;
if (channels == 4) {
format = GL_RGBA;
internalformat = GL_RGBA;
}
else {
format = GL_RED;
internalformat = GL_INTENSITY;
}
//if (fpixels)
// pixels = GPU_texture_convert_pixels(w*h*depth, fpixels);
glTexImage3D(tex->target, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, NULL);
GPU_print_error("3D glTexImage3D");
if (fpixels) {
if (!GPU_non_power_of_two_support() && (w != tex->w || h != tex->h || depth != tex->depth)) {
/* clear first to avoid unitialized pixels */
float *zero= MEM_callocN(sizeof(float)*tex->w*tex->h*tex->depth, "zero");
glTexSubImage3D(tex->target, 0, 0, 0, 0, tex->w, tex->h, tex->depth, format, type, zero);
MEM_freeN(zero);
}
glTexSubImage3D(tex->target, 0, 0, 0, 0, w, h, depth, format, type, fpixels);
GPU_print_error("3D glTexSubImage3D");
}
glTexParameterfv(GL_TEXTURE_3D, GL_TEXTURE_BORDER_COLOR, vfBorderColor);
GPU_print_error("3D GL_TEXTURE_BORDER_COLOR");
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GPU_print_error("3D GL_LINEAR");
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
GPU_print_error("3D GL_CLAMP_TO_BORDER");
if (pixels)
MEM_freeN(pixels);
GPU_texture_unbind(tex);
return tex;
}
void GPU_shader_unbind(void)
{
GPU_print_error("Pre Shader Unbind");
glUseProgramObjectARB(0);
GPU_print_error("Post Shader Unbind");
}
void GPU_shader_bind(GPUShader *shader)
{
GPU_print_error("Pre Shader Bind");
glUseProgramObjectARB(shader->object);
GPU_print_error("Post Shader Bind");
}
void GPU_shader_unbind(GPUShader *UNUSED(shader))
{
GPU_print_error("Pre Shader Unbind");
glUseProgramObjectARB(0);
GPU_print_error("Post Shader Unbind");
}
GPUTexture *GPU_texture_create_3D(int w, int h, int depth, float *fpixels)
{
GPUTexture *tex;
GLenum type, format, internalformat;
void *pixels = NULL;
float vfBorderColor[4] = {0.0f, 0.0f, 0.0f, 0.0f};
tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->w = w;
tex->h = h;
tex->depth = depth;
tex->number = -1;
tex->refcount = 1;
tex->target = GL_TEXTURE_3D;
glGenTextures(1, &tex->bindcode);
if (!tex->bindcode) {
fprintf(stderr, "GPUTexture: texture create failed: %d\n",
(int)glGetError());
GPU_texture_free(tex);
return NULL;
}
if (!GPU_non_power_of_two_support()) {
tex->w = larger_pow2(tex->w);
tex->h = larger_pow2(tex->h);
tex->depth = larger_pow2(tex->depth);
}
tex->number = 0;
glBindTexture(tex->target, tex->bindcode);
GPU_print_error("3D glBindTexture");
type = GL_FLOAT; // GL_UNSIGNED_BYTE
format = GL_RED;
internalformat = GL_INTENSITY;
//if (fpixels)
// pixels = GPU_texture_convert_pixels(w*h*depth, fpixels);
glTexImage3D(tex->target, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, 0);
GPU_print_error("3D glTexImage3D");
if (fpixels) {
glTexSubImage3D(tex->target, 0, 0, 0, 0, w, h, depth, format, type, fpixels);
GPU_print_error("3D glTexSubImage3D");
}
glTexParameterfv(GL_TEXTURE_3D, GL_TEXTURE_BORDER_COLOR, vfBorderColor);
GPU_print_error("3D GL_TEXTURE_BORDER_COLOR");
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GPU_print_error("3D GL_LINEAR");
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
GPU_print_error("3D GL_CLAMP_TO_BORDER");
if (pixels)
MEM_freeN(pixels);
if (tex)
GPU_texture_unbind(tex);
return tex;
}
