1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // This file is here so other GLES2 related files can have a common set of
6 // includes where appropriate.
10 #include <GLES2/gl2ext.h>
11 #include <GLES2/gl2extchromium.h>
13 #include "gpu/command_buffer/common/gles2_cmd_format.h"
14 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
19 namespace gl_error_bit {
22 kInvalidEnum = (1 << 0),
23 kInvalidValue = (1 << 1),
24 kInvalidOperation = (1 << 2),
25 kOutOfMemory = (1 << 3),
26 kInvalidFrameBufferOperation = (1 << 4)
30 int GLES2Util::GLGetNumValuesReturned(int id) const {
32 // -- glGetBooleanv, glGetFloatv, glGetIntergerv
33 case GL_ACTIVE_TEXTURE:
35 case GL_ALIASED_LINE_WIDTH_RANGE:
37 case GL_ALIASED_POINT_SIZE_RANGE:
41 case GL_ARRAY_BUFFER_BINDING:
47 case GL_BLEND_DST_ALPHA:
49 case GL_BLEND_DST_RGB:
51 case GL_BLEND_EQUATION_ALPHA:
53 case GL_BLEND_EQUATION_RGB:
55 case GL_BLEND_SRC_ALPHA:
57 case GL_BLEND_SRC_RGB:
61 case GL_COLOR_CLEAR_VALUE:
63 case GL_COLOR_WRITEMASK:
65 case GL_COMPRESSED_TEXTURE_FORMATS:
66 return num_compressed_texture_formats_;
69 case GL_CULL_FACE_MODE:
71 case GL_CURRENT_PROGRAM:
75 case GL_DEPTH_CLEAR_VALUE:
83 case GL_DEPTH_WRITEMASK:
87 case GL_ELEMENT_ARRAY_BUFFER_BINDING:
89 case GL_FRAMEBUFFER_BINDING:
93 case GL_GENERATE_MIPMAP_HINT:
97 case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
99 case GL_IMPLEMENTATION_COLOR_READ_TYPE:
103 case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
105 case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
107 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
109 case GL_MAX_RENDERBUFFER_SIZE:
111 case GL_MAX_TEXTURE_IMAGE_UNITS:
113 case GL_MAX_TEXTURE_SIZE:
115 case GL_MAX_VARYING_VECTORS:
117 case GL_MAX_VERTEX_ATTRIBS:
119 case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
121 case GL_MAX_VERTEX_UNIFORM_VECTORS:
123 case GL_MAX_VIEWPORT_DIMS:
125 case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
127 case GL_NUM_SHADER_BINARY_FORMATS:
129 case GL_PACK_ALIGNMENT:
131 case GL_PACK_REVERSE_ROW_ORDER_ANGLE:
133 case GL_POLYGON_OFFSET_FACTOR:
135 case GL_POLYGON_OFFSET_FILL:
137 case GL_POLYGON_OFFSET_UNITS:
141 case GL_RENDERBUFFER_BINDING:
143 case GL_SAMPLE_BUFFERS:
145 case GL_SAMPLE_COVERAGE_INVERT:
147 case GL_SAMPLE_COVERAGE_VALUE:
153 case GL_SCISSOR_TEST:
155 case GL_SHADER_BINARY_FORMATS:
156 return num_shader_binary_formats_;
157 case GL_SHADER_COMPILER:
159 case GL_STENCIL_BACK_FAIL:
161 case GL_STENCIL_BACK_FUNC:
163 case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
165 case GL_STENCIL_BACK_PASS_DEPTH_PASS:
167 case GL_STENCIL_BACK_REF:
169 case GL_STENCIL_BACK_VALUE_MASK:
171 case GL_STENCIL_BACK_WRITEMASK:
173 case GL_STENCIL_BITS:
175 case GL_STENCIL_CLEAR_VALUE:
177 case GL_STENCIL_FAIL:
179 case GL_STENCIL_FUNC:
181 case GL_STENCIL_PASS_DEPTH_FAIL:
183 case GL_STENCIL_PASS_DEPTH_PASS:
187 case GL_STENCIL_TEST:
189 case GL_STENCIL_VALUE_MASK:
191 case GL_STENCIL_WRITEMASK:
193 case GL_SUBPIXEL_BITS:
195 case GL_TEXTURE_BINDING_2D:
197 case GL_TEXTURE_BINDING_CUBE_MAP:
199 case GL_TEXTURE_BINDING_EXTERNAL_OES:
201 case GL_TEXTURE_BINDING_RECTANGLE_ARB:
203 case GL_TEXTURE_IMMUTABLE_FORMAT_EXT:
205 case GL_UNPACK_ALIGNMENT:
209 // -- glGetBooleanv, glGetFloatv, glGetIntergerv with
210 // GL_CHROMIUM_framebuffer_multisample
211 case GL_MAX_SAMPLES_EXT:
213 case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
216 // -- glGetBufferParameteriv
219 case GL_BUFFER_USAGE:
222 // -- glGetFramebufferAttachmentParameteriv
223 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
225 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
227 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
229 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
231 // -- glGetFramebufferAttachmentParameteriv with
232 // GL_EXT_multisampled_render_to_texture
233 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT:
237 case GL_DELETE_STATUS:
241 case GL_VALIDATE_STATUS:
243 case GL_INFO_LOG_LENGTH:
245 case GL_ATTACHED_SHADERS:
247 case GL_ACTIVE_ATTRIBUTES:
249 case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
251 case GL_ACTIVE_UNIFORMS:
253 case GL_ACTIVE_UNIFORM_MAX_LENGTH:
257 // -- glGetRenderbufferAttachmentParameteriv
258 case GL_RENDERBUFFER_WIDTH:
260 case GL_RENDERBUFFER_HEIGHT:
262 case GL_RENDERBUFFER_INTERNAL_FORMAT:
264 case GL_RENDERBUFFER_RED_SIZE:
266 case GL_RENDERBUFFER_GREEN_SIZE:
268 case GL_RENDERBUFFER_BLUE_SIZE:
270 case GL_RENDERBUFFER_ALPHA_SIZE:
272 case GL_RENDERBUFFER_DEPTH_SIZE:
274 case GL_RENDERBUFFER_STENCIL_SIZE:
276 // -- glGetRenderbufferAttachmentParameteriv with
277 // GL_EXT_multisampled_render_to_texture
278 case GL_RENDERBUFFER_SAMPLES_EXT:
284 // Already defined under glGetFramebufferAttachemntParameteriv.
285 // case GL_DELETE_STATUS:
287 case GL_COMPILE_STATUS:
289 // Already defined under glGetFramebufferAttachemntParameteriv.
290 // case GL_INFO_LOG_LENGTH:
292 case GL_SHADER_SOURCE_LENGTH:
294 case GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE:
297 // -- glGetTexParameterfv, glGetTexParameteriv
298 case GL_TEXTURE_MAG_FILTER:
300 case GL_TEXTURE_MIN_FILTER:
302 case GL_TEXTURE_WRAP_S:
304 case GL_TEXTURE_WRAP_T:
306 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
309 // -- glGetVertexAttribfv, glGetVertexAttribiv
310 case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
312 case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
314 case GL_VERTEX_ATTRIB_ARRAY_SIZE:
316 case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
318 case GL_VERTEX_ATTRIB_ARRAY_TYPE:
320 case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
322 case GL_CURRENT_VERTEX_ATTRIB:
325 // -- glHint with GL_OES_standard_derivatives
326 case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
328 #if defined(OS_CHROMEOS)
329 // Chromium internal bind_generates_resource query
330 case GL_BIND_GENERATES_RESOURCE_CHROMIUM:
341 // Return the number of elements per group of a specified format.
342 int ElementsPerGroup(int format, int type) {
344 case GL_UNSIGNED_SHORT_5_6_5:
345 case GL_UNSIGNED_SHORT_4_4_4_4:
346 case GL_UNSIGNED_SHORT_5_5_5_1:
347 case GL_UNSIGNED_INT_24_8_OES:
356 case GL_LUMINANCE_ALPHA:
363 case GL_DEPTH_COMPONENT:
364 case GL_DEPTH_COMPONENT24_OES:
365 case GL_DEPTH_COMPONENT32_OES:
366 case GL_DEPTH_COMPONENT16:
367 case GL_DEPTH24_STENCIL8_OES:
368 case GL_DEPTH_STENCIL_OES:
375 // Return the number of bytes per element, based on the element type.
376 int BytesPerElement(int type) {
379 case GL_UNSIGNED_INT_24_8_OES:
380 case GL_UNSIGNED_INT:
382 case GL_HALF_FLOAT_OES:
383 case GL_UNSIGNED_SHORT:
385 case GL_UNSIGNED_SHORT_5_6_5:
386 case GL_UNSIGNED_SHORT_4_4_4_4:
387 case GL_UNSIGNED_SHORT_5_5_5_1:
389 case GL_UNSIGNED_BYTE:
397 } // anonymous namespace
399 uint32 GLES2Util::ComputeImageGroupSize(int format, int type) {
400 return BytesPerElement(type) * ElementsPerGroup(format, type);
403 bool GLES2Util::ComputeImagePaddedRowSize(
404 int width, int format, int type, int unpack_alignment,
405 uint32* padded_row_size) {
406 uint32 bytes_per_group = ComputeImageGroupSize(format, type);
407 uint32 unpadded_row_size;
408 if (!SafeMultiplyUint32(width, bytes_per_group, &unpadded_row_size)) {
412 if (!SafeAddUint32(unpadded_row_size, unpack_alignment - 1, &temp)) {
415 *padded_row_size = (temp / unpack_alignment) * unpack_alignment;
419 // Returns the amount of data glTexImage2D or glTexSubImage2D will access.
420 bool GLES2Util::ComputeImageDataSizes(
421 int width, int height, int format, int type, int unpack_alignment,
422 uint32* size, uint32* ret_unpadded_row_size, uint32* ret_padded_row_size) {
423 uint32 bytes_per_group = ComputeImageGroupSize(format, type);
425 if (!SafeMultiplyUint32(width, bytes_per_group, &row_size)) {
430 if (!SafeAddUint32(row_size, unpack_alignment - 1, &temp)) {
433 uint32 padded_row_size = (temp / unpack_alignment) * unpack_alignment;
434 uint32 size_of_all_but_last_row;
435 if (!SafeMultiplyUint32((height - 1), padded_row_size,
436 &size_of_all_but_last_row)) {
439 if (!SafeAddUint32(size_of_all_but_last_row, row_size, size)) {
442 if (ret_padded_row_size) {
443 *ret_padded_row_size = padded_row_size;
446 if (!SafeMultiplyUint32(height, row_size, size)) {
449 if (ret_padded_row_size) {
450 *ret_padded_row_size = row_size;
453 if (ret_unpadded_row_size) {
454 *ret_unpadded_row_size = row_size;
460 size_t GLES2Util::RenderbufferBytesPerPixel(int format) {
462 case GL_STENCIL_INDEX8:
467 case GL_DEPTH_COMPONENT16:
471 case GL_DEPTH24_STENCIL8_OES:
474 case GL_DEPTH_COMPONENT24_OES:
481 uint32 GLES2Util::GetGLDataTypeSizeForUniforms(int type) {
484 return sizeof(GLfloat); // NOLINT
486 return sizeof(GLfloat) * 2; // NOLINT
488 return sizeof(GLfloat) * 3; // NOLINT
490 return sizeof(GLfloat) * 4; // NOLINT
492 return sizeof(GLint); // NOLINT
494 return sizeof(GLint) * 2; // NOLINT
496 return sizeof(GLint) * 3; // NOLINT
498 return sizeof(GLint) * 4; // NOLINT
500 return sizeof(GLint); // NOLINT
502 return sizeof(GLint) * 2; // NOLINT
504 return sizeof(GLint) * 3; // NOLINT
506 return sizeof(GLint) * 4; // NOLINT
508 return sizeof(GLfloat) * 2 * 2; // NOLINT
510 return sizeof(GLfloat) * 3 * 3; // NOLINT
512 return sizeof(GLfloat) * 4 * 4; // NOLINT
514 return sizeof(GLint); // NOLINT
515 case GL_SAMPLER_2D_RECT_ARB:
516 return sizeof(GLint); // NOLINT
517 case GL_SAMPLER_CUBE:
518 return sizeof(GLint); // NOLINT
519 case GL_SAMPLER_EXTERNAL_OES:
520 return sizeof(GLint); // NOLINT
526 size_t GLES2Util::GetGLTypeSizeForTexturesAndBuffers(uint32 type) {
529 return sizeof(GLbyte); // NOLINT
530 case GL_UNSIGNED_BYTE:
531 return sizeof(GLubyte); // NOLINT
533 return sizeof(GLshort); // NOLINT
534 case GL_UNSIGNED_SHORT:
535 return sizeof(GLushort); // NOLINT
537 return sizeof(GLint); // NOLINT
538 case GL_UNSIGNED_INT:
539 return sizeof(GLuint); // NOLINT
541 return sizeof(GLfloat); // NOLINT
543 return sizeof(GLfixed); // NOLINT
549 uint32 GLES2Util::GLErrorToErrorBit(uint32 error) {
551 case GL_INVALID_ENUM:
552 return gl_error_bit::kInvalidEnum;
553 case GL_INVALID_VALUE:
554 return gl_error_bit::kInvalidValue;
555 case GL_INVALID_OPERATION:
556 return gl_error_bit::kInvalidOperation;
557 case GL_OUT_OF_MEMORY:
558 return gl_error_bit::kOutOfMemory;
559 case GL_INVALID_FRAMEBUFFER_OPERATION:
560 return gl_error_bit::kInvalidFrameBufferOperation;
563 return gl_error_bit::kNoError;
567 uint32 GLES2Util::GLErrorBitToGLError(uint32 error_bit) {
569 case gl_error_bit::kInvalidEnum:
570 return GL_INVALID_ENUM;
571 case gl_error_bit::kInvalidValue:
572 return GL_INVALID_VALUE;
573 case gl_error_bit::kInvalidOperation:
574 return GL_INVALID_OPERATION;
575 case gl_error_bit::kOutOfMemory:
576 return GL_OUT_OF_MEMORY;
577 case gl_error_bit::kInvalidFrameBufferOperation:
578 return GL_INVALID_FRAMEBUFFER_OPERATION;
585 uint32 GLES2Util::IndexToGLFaceTarget(int index) {
586 static uint32 faces[] = {
587 GL_TEXTURE_CUBE_MAP_POSITIVE_X,
588 GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
589 GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
590 GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
591 GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
592 GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
597 uint32 GLES2Util::GetPreferredGLReadPixelsFormat(uint32 internal_format) {
598 switch (internal_format) {
610 uint32 GLES2Util::GetPreferredGLReadPixelsType(
611 uint32 internal_format, uint32 texture_type) {
612 switch (internal_format) {
618 return GL_HALF_FLOAT_OES;
621 // Unsized internal format, check the type
622 switch (texture_type) {
624 case GL_HALF_FLOAT_OES:
627 return GL_UNSIGNED_BYTE;
630 return GL_UNSIGNED_BYTE;
634 uint32 GLES2Util::GetChannelsForFormat(int format) {
637 case GL_ALPHA16F_EXT:
638 case GL_ALPHA32F_EXT:
642 case GL_LUMINANCE_ALPHA:
659 case GL_DEPTH_COMPONENT32_OES:
660 case GL_DEPTH_COMPONENT24_OES:
661 case GL_DEPTH_COMPONENT16:
662 case GL_DEPTH_COMPONENT:
664 case GL_STENCIL_INDEX8:
666 case GL_DEPTH_STENCIL_OES:
667 case GL_DEPTH24_STENCIL8_OES:
668 return kDepth | kStencil;
674 uint32 GLES2Util::GetChannelsNeededForAttachmentType(
675 int type, uint32 max_color_attachments) {
677 case GL_DEPTH_ATTACHMENT:
679 case GL_STENCIL_ATTACHMENT:
682 if (type >= GL_COLOR_ATTACHMENT0 &&
683 type < static_cast<int>(
684 GL_COLOR_ATTACHMENT0 + max_color_attachments)) {
691 std::string GLES2Util::GetStringEnum(uint32 value) {
692 const EnumToString* entry = enum_to_string_table_;
693 const EnumToString* end = entry + enum_to_string_table_len_;
694 for (;entry < end; ++entry) {
695 if (value == entry->value) {
699 std::stringstream ss;
701 ss.width(value < 0x10000 ? 4 : 8);
702 ss << std::hex << value;
703 return "0x" + ss.str();
706 std::string GLES2Util::GetStringError(uint32 value) {
707 static EnumToString string_table[] = {
708 { GL_NONE, "GL_NONE" },
710 return GLES2Util::GetQualifiedEnumString(
711 string_table, arraysize(string_table), value);
714 std::string GLES2Util::GetStringBool(uint32 value) {
715 return value ? "GL_TRUE" : "GL_FALSE";
718 std::string GLES2Util::GetQualifiedEnumString(
719 const EnumToString* table, size_t count, uint32 value) {
720 for (const EnumToString* end = table + count; table < end; ++table) {
721 if (table->value == value) {
725 return GetStringEnum(value);
728 bool GLES2Util::ParseUniformName(
729 const std::string& name,
732 bool* getting_array) {
733 bool getting_array_location = false;
734 size_t open_pos = std::string::npos;
736 if (name[name.size() - 1] == ']') {
737 if (name.size() < 3) {
740 open_pos = name.find_last_of('[');
741 if (open_pos == std::string::npos ||
742 open_pos >= name.size() - 2) {
745 size_t last = name.size() - 1;
746 for (size_t pos = open_pos + 1; pos < last; ++pos) {
747 int8 digit = name[pos] - '0';
748 if (digit < 0 || digit > 9) {
751 index = index * 10 + digit;
753 getting_array_location = true;
755 *getting_array = getting_array_location;
756 *element_index = index;
757 *array_pos = open_pos;
764 const int32 kAlphaSize = 0x3021; // EGL_ALPHA_SIZE
765 const int32 kBlueSize = 0x3022; // EGL_BLUE_SIZE
766 const int32 kGreenSize = 0x3023; // EGL_GREEN_SIZE
767 const int32 kRedSize = 0x3024; // EGL_RED_SIZE
768 const int32 kDepthSize = 0x3025; // EGL_DEPTH_SIZE
769 const int32 kStencilSize = 0x3026; // EGL_STENCIL_SIZE
770 const int32 kSamples = 0x3031; // EGL_SAMPLES
771 const int32 kSampleBuffers = 0x3032; // EGL_SAMPLE_BUFFERS
772 const int32 kNone = 0x3038; // EGL_NONE
773 const int32 kSwapBehavior = 0x3093; // EGL_SWAP_BEHAVIOR
774 const int32 kBufferPreserved = 0x3094; // EGL_BUFFER_PRESERVED
775 const int32 kBufferDestroyed = 0x3095; // EGL_BUFFER_DESTROYED
778 const int32 kShareResources = 0x10000;
779 const int32 kBindGeneratesResource = 0x10001;
780 const int32 kFailIfMajorPerfCaveat = 0x10002;
781 const int32 kLoseContextWhenOutOfMemory = 0x10003;
785 ContextCreationAttribHelper::ContextCreationAttribHelper()
794 buffer_preserved_(true),
795 share_resources_(false),
796 bind_generates_resource_(true),
797 fail_if_major_perf_caveat_(false),
798 lose_context_when_out_of_memory_(false) {}
800 void ContextCreationAttribHelper::Serialize(std::vector<int32>* attribs) {
801 if (alpha_size_ != -1) {
802 attribs->push_back(kAlphaSize);
803 attribs->push_back(alpha_size_);
805 if (blue_size_ != -1) {
806 attribs->push_back(kBlueSize);
807 attribs->push_back(blue_size_);
809 if (green_size_ != -1) {
810 attribs->push_back(kGreenSize);
811 attribs->push_back(green_size_);
813 if (red_size_ != -1) {
814 attribs->push_back(kRedSize);
815 attribs->push_back(red_size_);
817 if (depth_size_ != -1) {
818 attribs->push_back(kDepthSize);
819 attribs->push_back(depth_size_);
821 if (stencil_size_ != -1) {
822 attribs->push_back(kStencilSize);
823 attribs->push_back(stencil_size_);
825 if (samples_ != -1) {
826 attribs->push_back(kSamples);
827 attribs->push_back(samples_);
829 if (sample_buffers_ != -1) {
830 attribs->push_back(kSampleBuffers);
831 attribs->push_back(sample_buffers_);
833 attribs->push_back(kSwapBehavior);
834 attribs->push_back(buffer_preserved_ ? kBufferPreserved : kBufferDestroyed);
835 attribs->push_back(kShareResources);
836 attribs->push_back(share_resources_ ? 1 : 0);
837 attribs->push_back(kBindGeneratesResource);
838 attribs->push_back(bind_generates_resource_ ? 1 : 0);
839 attribs->push_back(kFailIfMajorPerfCaveat);
840 attribs->push_back(fail_if_major_perf_caveat_ ? 1 : 0);
841 attribs->push_back(kLoseContextWhenOutOfMemory);
842 attribs->push_back(lose_context_when_out_of_memory_ ? 1 : 0);
843 attribs->push_back(kNone);
846 bool ContextCreationAttribHelper::Parse(const std::vector<int32>& attribs) {
847 for (size_t i = 0; i < attribs.size(); i += 2) {
848 const int32 attrib = attribs[i];
849 if (i + 1 >= attribs.size()) {
850 if (attrib == kNone) {
854 DLOG(ERROR) << "Missing value after context creation attribute: "
859 const int32 value = attribs[i+1];
877 stencil_size_ = value;
883 sample_buffers_ = value;
886 buffer_preserved_ = value == kBufferPreserved;
888 case kShareResources:
889 share_resources_ = value != 0;
891 case kBindGeneratesResource:
892 bind_generates_resource_ = value != 0;
894 case kFailIfMajorPerfCaveat:
895 fail_if_major_perf_caveat_ = value != 0;
897 case kLoseContextWhenOutOfMemory:
898 lose_context_when_out_of_memory_ = value != 0;
901 // Terminate list, even if more attributes.
904 DLOG(ERROR) << "Invalid context creation attribute: " << attrib;
912 #include "gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h"