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GPU: Texture: Remove multibind tracking

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This is more of a limitation than it is a solution.
This commit is contained in:
Clément Foucault 2020-06-02 17:26:38 +02:00
parent beef67d1df
commit ee4bafc63a
1 changed files with 24 additions and 54 deletions
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78
source/blender/gpu/intern/gpu_texture.c
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@ -56,8 +56,6 @@ static struct GPUTextureGlobal {
/* Maximum number of FBOs a texture can be attached to. */
#define GPU_TEX_MAX_FBO_ATTACHED 12
/* Maximum number of texture unit a texture can be attached to. */
#define GPU_TEX_MAX_BIND 4
typedef enum eGPUTextureFormatFlag {
GPU_FORMAT_DEPTH = (1 << 0),
@ -74,14 +72,14 @@ typedef enum eGPUTextureFormatFlag {
/* GPUTexture */
struct GPUTexture {
int w, h, d; /* width/height/depth */
int orig_w, orig_h; /* width/height (of source data), optional. */
int number[GPU_TEX_MAX_BIND]; /* Texture unit(s) to which this texture is bound. */
int refcount; /* reference count */
GLenum target; /* GL_TEXTURE_* */
GLenum target_base; /* same as target, (but no multisample)
* use it for unbinding */
GLuint bindcode; /* opengl identifier for texture */
int w, h, d; /* width/height/depth */
int orig_w, orig_h; /* width/height (of source data), optional. */
int number; /* Texture unit to which this texture is bound. */
int refcount; /* reference count */
GLenum target; /* GL_TEXTURE_* */
GLenum target_base; /* same as target, (but no multisample)
* use it for unbinding */
GLuint bindcode; /* opengl identifier for texture */
eGPUTextureFormat format;
eGPUTextureFormatFlag format_flag;
@ -837,9 +835,7 @@ GPUTexture *GPU_texture_create_nD(int w,
tex->components = gpu_get_component_count(tex_format);
tex->mipmaps = 0;
tex->format_flag = 0;
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
tex->number[i] = -1;
}
tex->number = -1;
if (n == 2) {
if (d == 0) {
@ -1013,9 +1009,7 @@ GPUTexture *GPU_texture_cube_create(int w,
tex->components = gpu_get_component_count(tex_format);
tex->mipmaps = 0;
tex->format_flag = GPU_FORMAT_CUBE;
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
tex->number[i] = -1;
}
tex->number = -1;
if (d == 0) {
tex->target_base = tex->target = GL_TEXTURE_CUBE_MAP;
@ -1136,10 +1130,7 @@ GPUTexture *GPU_texture_create_buffer(eGPUTextureFormat tex_format, const GLuint
tex->format_flag = 0;
tex->target_base = tex->target = GL_TEXTURE_BUFFER;
tex->mipmaps = 0;
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
tex->number[i] = -1;
}
tex->number = -1;
GLenum internalformat = gpu_format_to_gl_internalformat(tex_format);
@ -1194,9 +1185,7 @@ GPUTexture *GPU_texture_from_bindcode(int textarget, int bindcode)
if (GPU_get_mipmap()) {
tex->sampler_state |= (GPU_SAMPLER_MIPMAP | GPU_SAMPLER_FILTER);
}
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
tex->number[i] = -1;
}
tex->number = -1;
if (!glIsTexture(tex->bindcode)) {
GPU_print_error_debug("Blender Texture Not Loaded");
@ -1744,23 +1733,7 @@ void GPU_texture_bind(GPUTexture *tex, int unit)
}
}
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
if (tex->number[i] == -1) {
tex->number[i] = unit;
break;
}
else if (tex->number[i] == unit) {
/* Already bound to this unit.
* But might be with another sampler object so we still rebind. */
break;
}
else if (i == GPU_TEX_MAX_BIND - 1) {
fprintf(stderr, "Texture is already bound to its maximum number of sampler units!\n");
BLI_assert(0); /* Should never happen! */
return;
}
}
tex->number = unit;
glActiveTexture(GL_TEXTURE0 + unit);
if (tex->bindcode != 0) {
@ -1775,28 +1748,25 @@ void GPU_texture_bind(GPUTexture *tex, int unit)
void GPU_texture_unbind(GPUTexture *tex)
{
for (int i = 0; i < GPU_TEX_MAX_BIND; i++) {
if (tex->number[i] != -1) {
glActiveTexture(GL_TEXTURE0 + tex->number[i]);
glBindTexture(tex->target, 0);
glBindSampler(tex->number[i], 0);
tex->number[i] = -1;
}
else {
break;
}
if (tex->number == -1) {
return;
}
glActiveTexture(GL_TEXTURE0 + tex->number);
glBindTexture(tex->target, 0);
glBindSampler(tex->number, 0);
tex->number = -1;
}
int GPU_texture_bound_number(GPUTexture *tex)
{
/* TODO remove. Makes no sense now. */
return tex->number[0];
return tex->number;
}
#define WARN_NOT_BOUND(_tex) \
{ \
if (_tex->number[0] == -1) { \
if (_tex->number == -1) { \
fprintf(stderr, "Warning : Trying to set parameter on a texture not bound.\n"); \
BLI_assert(0); \
return; \
@ -1811,7 +1781,7 @@ void GPU_texture_generate_mipmap(GPUTexture *tex)
gpu_texture_memory_footprint_remove(tex);
int levels = 1 + floor(log2(max_ii(tex->w, tex->h)));
glActiveTexture(GL_TEXTURE0 + tex->number[0]);
glActiveTexture(GL_TEXTURE0 + tex->number);
if (GPU_texture_depth(tex)) {
/* Some drivers have bugs when using glGenerateMipmap with depth textures (see T56789).
@ -1957,7 +1927,7 @@ void GPU_texture_swizzle_channel_auto(GPUTexture *tex, int channels)
{
WARN_NOT_BOUND(tex);
glActiveTexture(GL_TEXTURE0 + tex->number[0]);
glActiveTexture(GL_TEXTURE0 + tex->number);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_R, GL_RED);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_G, (channels >= 2) ? GL_GREEN : GL_RED);
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_B, (channels >= 3) ? GL_BLUE : GL_RED);