void GPU_invalid_tex_init(void)
{
float color[4] = {1.0f, 0.0f, 1.0f, 1.0};
GG.invalid_tex_1D = GPU_texture_create_1D(1, color, NULL);
GG.invalid_tex_2D = GPU_texture_create_2D(1, 1, color, NULL);
GG.invalid_tex_3D = GPU_texture_create_3D(1, 1, 1, 4, color);
}
GPUOffScreen *GPU_offscreen_create(int *width, int *height, char err_out[256])
{
GPUOffScreen *ofs;
ofs= MEM_callocN(sizeof(GPUOffScreen), "GPUOffScreen");
ofs->fb = GPU_framebuffer_create();
if(!ofs->fb) {
GPU_offscreen_free(ofs);
return NULL;
}
ofs->depth = GPU_texture_create_depth(*width, *height, err_out);
if(!ofs->depth) {
GPU_offscreen_free(ofs);
return NULL;
}
if(*width!=ofs->depth->w || *height!=ofs->depth->h) {
*width= ofs->depth->w;
*height= ofs->depth->h;
printf("Offscreen size differs from given size!\n");
}
if(!GPU_framebuffer_texture_attach(ofs->fb, ofs->depth, err_out)) {
GPU_offscreen_free(ofs);
return NULL;
}
ofs->color = GPU_texture_create_2D(*width, *height, NULL, err_out);
if(!ofs->color) {
GPU_offscreen_free(ofs);
return NULL;
}
if(!GPU_framebuffer_texture_attach(ofs->fb, ofs->color, err_out)) {
GPU_offscreen_free(ofs);
return NULL;
}
GPU_framebuffer_restore();
return ofs;
}
GPUOffScreen *GPU_offscreen_create(int width, int height, char err_out[256])
{
GPUOffScreen *ofs;
ofs= MEM_callocN(sizeof(GPUOffScreen), "GPUOffScreen");
ofs->w= width;
ofs->h= height;
ofs->fb = GPU_framebuffer_create();
if (!ofs->fb) {
GPU_offscreen_free(ofs);
return NULL;
}
ofs->depth = GPU_texture_create_depth(width, height, err_out);
if (!ofs->depth) {
GPU_offscreen_free(ofs);
return NULL;
}
if (!GPU_framebuffer_texture_attach(ofs->fb, ofs->depth, err_out)) {
GPU_offscreen_free(ofs);
return NULL;
}
ofs->color = GPU_texture_create_2D(width, height, NULL, err_out);
if (!ofs->color) {
GPU_offscreen_free(ofs);
return NULL;
}
if (!GPU_framebuffer_texture_attach(ofs->fb, ofs->color, err_out)) {
GPU_offscreen_free(ofs);
return NULL;
}
GPU_framebuffer_restore();
return ofs;
}
bool GPU_fx_compositor_initialize_passes(
GPUFX *fx, const rcti *rect, const rcti *scissor_rect,
const GPUFXSettings *fx_settings)
{
int w = BLI_rcti_size_x(rect), h = BLI_rcti_size_y(rect);
char err_out[256];
int num_passes = 0;
char fx_flag;
fx->effects = 0;
if (!fx_settings) {
cleanup_fx_gl_data(fx, true);
return false;
}
fx_flag = fx_settings->fx_flag;
/* disable effects if no options passed for them */
if (!fx_settings->dof) {
fx_flag &= ~GPU_FX_FLAG_DOF;
}
if (!fx_settings->ssao || fx_settings->ssao->samples < 1) {
fx_flag &= ~GPU_FX_FLAG_SSAO;
}
if (!fx_flag) {
cleanup_fx_gl_data(fx, true);
return false;
}
/* scissor is missing when drawing offscreen, in that case, dimensions match exactly. In opposite case
* add one to match viewport dimensions */
if (scissor_rect) {
w++, h++;
}
fx->num_passes = 0;
/* dof really needs a ping-pong buffer to work */
if (fx_flag & GPU_FX_FLAG_DOF)
num_passes++;
if (fx_flag & GPU_FX_FLAG_SSAO)
num_passes++;
if (!fx->gbuffer)
fx->gbuffer = GPU_framebuffer_create();
/* try creating the jitter texture */
if (!fx->jitter_buffer)
fx->jitter_buffer = create_jitter_texture();
if (!fx->gbuffer)
return false;
/* check if color buffers need recreation */
if (!fx->color_buffer || !fx->depth_buffer || w != fx->gbuffer_dim[0] || h != fx->gbuffer_dim[1]) {
cleanup_fx_gl_data(fx, false);
if (!(fx->color_buffer = GPU_texture_create_2D(w, h, NULL, GPU_HDR_NONE, err_out))) {
printf(".256%s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
if (!(fx->depth_buffer = GPU_texture_create_depth(w, h, err_out))) {
printf("%.256s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
}
if (fx_flag & GPU_FX_FLAG_SSAO) {
if (fx_settings->ssao->samples != fx->ssao_sample_count || !fx->ssao_concentric_samples_tex) {
if (fx_settings->ssao->samples < 1)
fx_settings->ssao->samples = 1;
fx->ssao_sample_count = fx_settings->ssao->samples;
if (fx->ssao_concentric_samples_tex) {
GPU_texture_free(fx->ssao_concentric_samples_tex);
}
fx->ssao_concentric_samples_tex = create_spiral_sample_texture(fx_settings->ssao->samples);
}
}
else {
if (fx->ssao_concentric_samples_tex) {
GPU_texture_free(fx->ssao_concentric_samples_tex);
fx->ssao_concentric_samples_tex = NULL;
}
}
/* create textures for dof effect */
if (fx_flag & GPU_FX_FLAG_DOF) {
if (!fx->dof_near_coc_buffer || !fx->dof_near_coc_blurred_buffer || !fx->dof_near_coc_final_buffer) {
fx->dof_downsampled_w = w / 4;
fx->dof_downsampled_h = h / 4;
if (!(fx->dof_near_coc_buffer = GPU_texture_create_2D(
fx->dof_downsampled_w, fx->dof_downsampled_h, NULL, GPU_HDR_NONE, err_out)))
{
printf("%.256s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
if (!(fx->dof_near_coc_blurred_buffer = GPU_texture_create_2D(
fx->dof_downsampled_w, fx->dof_downsampled_h, NULL, GPU_HDR_NONE, err_out)))
{
printf("%.256s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
if (!(fx->dof_near_coc_final_buffer = GPU_texture_create_2D(
fx->dof_downsampled_w, fx->dof_downsampled_h, NULL, GPU_HDR_NONE, err_out)))
{
printf("%.256s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
}
}
else {
/* cleanup unnecessary buffers */
cleanup_fx_dof_buffers(fx);
}
/* we need to pass data between shader stages, allocate an extra color buffer */
if (num_passes > 1) {
if(!fx->color_buffer_sec) {
if (!(fx->color_buffer_sec = GPU_texture_create_2D(w, h, NULL, GPU_HDR_NONE, err_out))) {
printf(".256%s\n", err_out);
cleanup_fx_gl_data(fx, true);
return false;
}
}
}
else {
if (fx->color_buffer_sec) {
GPU_framebuffer_texture_detach(fx->color_buffer_sec);
GPU_texture_free(fx->color_buffer_sec);
fx->color_buffer_sec = NULL;
}
}
/* bind the buffers */
/* first depth buffer, because system assumes read/write buffers */
if(!GPU_framebuffer_texture_attach(fx->gbuffer, fx->depth_buffer, 0, err_out))
printf("%.256s\n", err_out);
if(!GPU_framebuffer_texture_attach(fx->gbuffer, fx->color_buffer, 0, err_out))
printf("%.256s\n", err_out);
if(!GPU_framebuffer_check_valid(fx->gbuffer, err_out))
printf("%.256s\n", err_out);
GPU_texture_bind_as_framebuffer(fx->color_buffer);
/* enable scissor test. It's needed to ensure sculpting works correctly */
if (scissor_rect) {
int w_sc = BLI_rcti_size_x(scissor_rect) + 1;
int h_sc = BLI_rcti_size_y(scissor_rect) + 1;
glPushAttrib(GL_SCISSOR_BIT);
glEnable(GL_SCISSOR_TEST);
glScissor(scissor_rect->xmin - rect->xmin, scissor_rect->ymin - rect->ymin,
w_sc, h_sc);
fx->restore_stencil = true;
}
else {
fx->restore_stencil = false;
}
fx->effects = fx_flag;
if (fx_settings)
fx->settings = *fx_settings;
fx->gbuffer_dim[0] = w;
fx->gbuffer_dim[1] = h;
fx->num_passes = num_passes;
return true;
}
static void gpu_node_input_link(GPUNode *node, GPUNodeLink *link, int type)
{
GPUInput *input;
GPUNode *outnode;
const char *name;
if (link->output) {
outnode = link->output->node;
name = outnode->name;
if (strcmp(name, "set_value")==0 || strcmp(name, "set_rgb")==0) {
input = MEM_dupallocN(outnode->inputs.first);
input->type = type;
if (input->link)
input->link->users++;
BLI_addtail(&node->inputs, input);
return;
}
}
input = MEM_callocN(sizeof(GPUInput), "GPUInput");
input->node = node;
if (link->builtin) {
/* builtin uniform */
input->type = type;
input->source = GPU_SOURCE_BUILTIN;
input->builtin = link->builtin;
MEM_freeN(link);
}
else if (link->output) {
/* link to a node output */
input->type = type;
input->source = GPU_SOURCE_TEX_PIXEL;
input->link = link;
link->users++;
}
else if (link->dynamictex) {
/* dynamic texture, GPUTexture is updated/deleted externally */
input->type = type;
input->source = GPU_SOURCE_TEX;
input->tex = link->dynamictex;
input->textarget = GL_TEXTURE_2D;
input->textype = type;
input->dynamictex = 1;
input->dynamicdata = link->ptr2;
MEM_freeN(link);
}
else if (link->texture) {
/* small texture created on the fly, like for colorbands */
input->type = GPU_VEC4;
input->source = GPU_SOURCE_TEX;
input->textype = type;
//input->tex = GPU_texture_create_2D(link->texturesize, link->texturesize, link->ptr2, NULL);
input->tex = GPU_texture_create_2D(link->texturesize, 1, link->ptr1, NULL);
input->textarget = GL_TEXTURE_2D;
MEM_freeN(link->ptr1);
MEM_freeN(link);
}
else if (link->image) {
/* blender image */
input->type = GPU_VEC4;
input->source = GPU_SOURCE_TEX;
if (link->image == LINK_IMAGE_PREVIEW)
input->prv = link->ptr1;
else {
input->ima = link->ptr1;
input->iuser = link->ptr2;
input->image_isdata = link->image_isdata;
}
input->textarget = GL_TEXTURE_2D;
input->textype = GPU_TEX2D;
MEM_freeN(link);
}
else if (link->attribtype) {
/* vertex attribute */
input->type = type;
input->source = GPU_SOURCE_ATTRIB;
input->attribtype = link->attribtype;
BLI_strncpy(input->attribname, link->attribname, sizeof(input->attribname));
MEM_freeN(link);
}
else {
/* uniform vector */
input->type = type;
input->source = GPU_SOURCE_VEC_UNIFORM;
memcpy(input->vec, link->ptr1, type*sizeof(float));
if (link->dynamic) {
input->dynamicvec= link->ptr1;
input->dynamictype= link->dynamictype;
input->dynamicdata= link->ptr2;
}
MEM_freeN(link);
}
BLI_addtail(&node->inputs, input);
}