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GLTexture: Add direct state access support

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This commit is contained in:
Clément Foucault
2020-09-05 17:36:00 +02:00
parent 558e1158e7
commit 64490bdedb
2 changed files with 65 additions and 20 deletions
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83
source/blender/gpu/opengl/gl_texture.cc
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@@ -77,6 +77,9 @@ bool GLTexture::init_internal(void)
target_ = to_gl_target(type_);
/* We need to bind once to define the texture type. */
GLContext::state_manager_active_get()->texture_bind_temp(this);
if (!this->proxy_check(0)) {
return false;
}
@@ -84,11 +87,10 @@ bool GLTexture::init_internal(void)
this->ensure_mipmaps(0);
/* Avoid issue with incomplete textures. */
if (false) {
/* TODO(fclem) Direct State Access. */
if (GLEW_ARB_direct_state_access) {
glTextureParameteri(tex_id_, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
else {
GLContext::state_manager_active_get()->texture_bind_temp(this);
glTexParameteri(target_, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
@@ -110,13 +112,15 @@ bool GLTexture::init_internal(GPUVertBuf *vbo)
{
target_ = to_gl_target(type_);
/* We need to bind once to define the texture type. */
GLContext::state_manager_active_get()->texture_bind_temp(this);
GLenum internal_format = to_gl_internal_format(format_);
if (false) {
/* TODO(fclem) Direct State Access. */
if (GLEW_ARB_direct_state_access) {
glTextureBuffer(tex_id_, internal_format, vbo->vbo_id);
}
else {
GLContext::state_manager_active_get()->texture_bind_temp(this);
glTexBuffer(target_, internal_format, vbo->vbo_id);
}
@@ -203,6 +207,43 @@ void GLTexture::ensure_mipmaps(int miplvl)
/** \name Operations
* \{ */
void GLTexture::update_sub_direct_state_access(
int mip, int offset[3], int extent[3], GLenum format, GLenum type, const void *data)
{
if (format_flag_ & GPU_FORMAT_COMPRESSED) {
size_t size = ((extent[0] + 3) / 4) * ((extent[1] + 3) / 4) * to_block_size(format_);
switch (this->dimensions_count()) {
default:
case 1:
glCompressedTextureSubImage1D(tex_id_, mip, offset[0], extent[0], format, size, data);
break;
case 2:
glCompressedTextureSubImage2D(
tex_id_, mip, UNPACK2(offset), UNPACK2(extent), format, size, data);
break;
case 3:
glCompressedTextureSubImage3D(
tex_id_, mip, UNPACK3(offset), UNPACK3(extent), format, size, data);
break;
}
}
else {
switch (this->dimensions_count()) {
default:
case 1:
glTextureSubImage1D(tex_id_, mip, offset[0], extent[0], format, type, data);
break;
case 2:
glTextureSubImage2D(tex_id_, mip, UNPACK2(offset), UNPACK2(extent), format, type, data);
break;
case 3:
glTextureSubImage3D(tex_id_, mip, UNPACK3(offset), UNPACK3(extent), format, type, data);
break;
}
}
GL_CHECK_ERROR("Post-update_sub_direct_state_access");
}
void GLTexture::update_sub(
int mip, int offset[3], int extent[3], eGPUDataFormat type, const void *data)
{
@@ -220,11 +261,13 @@ void GLTexture::update_sub(
GLenum gl_format = to_gl_data_format(format_);
GLenum gl_type = to_gl(type);
GLContext::state_manager_active_get()->texture_bind_temp(this);
if (GLEW_ARB_direct_state_access) {
this->update_sub_direct_state_access(mip, offset, extent, gl_format, gl_type, data);
return;
}
if (true && type_ == GPU_TEXTURE_CUBE) {
/* TODO(fclem) bypass if direct state access is available. */
/* Workaround when ARB_direct_state_access is not available. */
GLContext::state_manager_active_get()->texture_bind_temp(this);
if (type_ == GPU_TEXTURE_CUBE) {
for (int i = 0; i < extent[2]; i++) {
GLenum target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + offset[2] + i;
glTexSubImage2D(target, mip, UNPACK2(offset), UNPACK2(extent), gl_format, gl_type, data);
@@ -280,11 +323,11 @@ void GLTexture::generate_mipmap(void)
return;
}
if (false) {
/* TODO(fclem) Direct State Access. */
/* Downsample from mip 0 using implementation. */
if (GLEW_ARB_direct_state_access) {
glGenerateTextureMipmap(tex_id_);
}
else {
/* Downsample from mip 0 using implementation. */
GLContext::state_manager_active_get()->texture_bind_temp(this);
glGenerateMipmap(target_);
}
@@ -360,9 +403,8 @@ void *GLTexture::read(int mip, eGPUDataFormat type)
GLenum gl_format = to_gl_data_format(format_);
GLenum gl_type = to_gl(type);
if (false) {
/* TODO(fclem) Direct State Access. */
/* NOTE: DSA can read GL_TEXTURE_CUBE_MAP directly. */
if (GLEW_ARB_direct_state_access) {
glGetTextureImage(tex_id_, mip, gl_format, gl_type, texture_size, data);
}
else {
GLContext::state_manager_active_get()->texture_bind_temp(this);
@@ -392,8 +434,8 @@ void GLTexture::swizzle_set(const char swizzle[4])
(GLint)swizzle_to_gl(swizzle[1]),
(GLint)swizzle_to_gl(swizzle[2]),
(GLint)swizzle_to_gl(swizzle[3])};
if (false) {
/* TODO(fclem) Direct State Access. */
if (GLEW_ARB_direct_state_access) {
glTextureParameteriv(tex_id_, GL_TEXTURE_SWIZZLE_RGBA, gl_swizzle);
}
else {
GLContext::state_manager_active_get()->texture_bind_temp(this);
@@ -404,8 +446,9 @@ void GLTexture::swizzle_set(const char swizzle[4])
void GLTexture::mip_range_set(int min, int max)
{
BLI_assert(min <= max && min >= 0 && max <= mipmaps_);
if (false) {
/* TODO(fclem) Direct State Access. */
if (GLEW_ARB_direct_state_access) {
glTextureParameteri(tex_id_, GL_TEXTURE_BASE_LEVEL, min);
glTextureParameteri(tex_id_, GL_TEXTURE_MAX_LEVEL, max);
}
else {
GLContext::state_manager_active_get()->texture_bind_temp(this);

2
source/blender/gpu/opengl/gl_texture.hh
View File

@@ -89,6 +89,8 @@ class GLTexture : public Texture {
private:
bool proxy_check(int mip);
void ensure_mipmaps(int mip);
void update_sub_direct_state_access(
int mip, int offset[3], int extent[3], GLenum gl_format, GLenum gl_type, const void *data);
GPUFrameBuffer *framebuffer_get(void);
MEM_CXX_CLASS_ALLOC_FUNCS("GLTexture")