| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This file is here so other GLES2 related files can have a common set of |
| // includes where appropriate. |
| |
| #include "gpu/command_buffer/common/gles2_cmd_utils.h" |
| |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| #include <GLES2/gl2extchromium.h> |
| #include <GLES3/gl3.h> |
| #include <GLES3/gl31.h> |
| |
| #include <sstream> |
| |
| #include "base/numerics/safe_math.h" |
| #include "base/stl_util.h" |
| |
| namespace gpu { |
| namespace gles2 { |
| |
| namespace gl_error_bit { |
| enum GLErrorBit { |
| kNoError = 0, |
| kInvalidEnum = (1 << 0), |
| kInvalidValue = (1 << 1), |
| kInvalidOperation = (1 << 2), |
| kOutOfMemory = (1 << 3), |
| kInvalidFramebufferOperation = (1 << 4), |
| kContextLost = (1 << 5) |
| }; |
| } // namespace gl_error_bit |
| |
| int GLES2Util::GLGetNumValuesReturned(int id) const { |
| switch (id) { |
| // -- glGetBooleanv, glGetFloatv, glGetIntergerv |
| case GL_ACTIVE_TEXTURE: |
| return 1; |
| case GL_ALIASED_LINE_WIDTH_RANGE: |
| return 2; |
| case GL_ALIASED_POINT_SIZE_RANGE: |
| return 2; |
| case GL_ALPHA_BITS: |
| return 1; |
| case GL_ARRAY_BUFFER_BINDING: |
| return 1; |
| case GL_BLEND: |
| return 1; |
| case GL_BLEND_COLOR: |
| return 4; |
| case GL_BLEND_DST_ALPHA: |
| return 1; |
| case GL_BLEND_DST_RGB: |
| return 1; |
| case GL_BLEND_EQUATION_ALPHA: |
| return 1; |
| case GL_BLEND_EQUATION_RGB: |
| return 1; |
| case GL_BLEND_SRC_ALPHA: |
| return 1; |
| case GL_BLEND_SRC_RGB: |
| return 1; |
| case GL_BLUE_BITS: |
| return 1; |
| case GL_COLOR_CLEAR_VALUE: |
| return 4; |
| case GL_COLOR_WRITEMASK: |
| return 4; |
| case GL_COMPRESSED_TEXTURE_FORMATS: |
| return num_compressed_texture_formats_; |
| case GL_CULL_FACE: |
| return 1; |
| case GL_CULL_FACE_MODE: |
| return 1; |
| case GL_CURRENT_PROGRAM: |
| return 1; |
| case GL_DEPTH_BITS: |
| return 1; |
| case GL_DEPTH_CLEAR_VALUE: |
| return 1; |
| case GL_DEPTH_FUNC: |
| return 1; |
| case GL_DEPTH_RANGE: |
| return 2; |
| case GL_DEPTH_TEST: |
| return 1; |
| case GL_DEPTH_WRITEMASK: |
| return 1; |
| case GL_DITHER: |
| return 1; |
| case GL_ELEMENT_ARRAY_BUFFER_BINDING: |
| return 1; |
| case GL_FRAMEBUFFER_BINDING: |
| return 1; |
| case GL_FRONT_FACE: |
| return 1; |
| case GL_GENERATE_MIPMAP_HINT: |
| return 1; |
| case GL_GREEN_BITS: |
| return 1; |
| case GL_IMPLEMENTATION_COLOR_READ_FORMAT: |
| return 1; |
| case GL_IMPLEMENTATION_COLOR_READ_TYPE: |
| return 1; |
| case GL_LINE_WIDTH: |
| return 1; |
| case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: |
| return 1; |
| case GL_MAX_CUBE_MAP_TEXTURE_SIZE: |
| return 1; |
| case GL_MAX_FRAGMENT_UNIFORM_VECTORS: |
| return 1; |
| case GL_MAX_RENDERBUFFER_SIZE: |
| return 1; |
| case GL_MAX_TEXTURE_IMAGE_UNITS: |
| return 1; |
| case GL_MAX_TEXTURE_SIZE: |
| return 1; |
| case GL_MAX_VARYING_VECTORS: |
| return 1; |
| case GL_MAX_VERTEX_ATTRIBS: |
| return 1; |
| case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS: |
| return 1; |
| case GL_MAX_VERTEX_UNIFORM_VECTORS: |
| return 1; |
| case GL_MAX_VIEWPORT_DIMS: |
| return 2; |
| case GL_NUM_COMPRESSED_TEXTURE_FORMATS: |
| return 1; |
| case GL_NUM_SHADER_BINARY_FORMATS: |
| return 1; |
| case GL_PACK_ALIGNMENT: |
| return 1; |
| case GL_POLYGON_OFFSET_FACTOR: |
| return 1; |
| case GL_POLYGON_OFFSET_FILL: |
| return 1; |
| case GL_POLYGON_OFFSET_UNITS: |
| return 1; |
| case GL_RED_BITS: |
| return 1; |
| case GL_RENDERBUFFER_BINDING: |
| return 1; |
| case GL_SAMPLE_BUFFERS: |
| return 1; |
| case GL_SAMPLE_COVERAGE_INVERT: |
| return 1; |
| case GL_SAMPLE_COVERAGE_VALUE: |
| return 1; |
| case GL_SAMPLES: |
| return 1; |
| case GL_SCISSOR_BOX: |
| return 4; |
| case GL_SCISSOR_TEST: |
| return 1; |
| case GL_SHADER_BINARY_FORMATS: |
| return num_shader_binary_formats_; |
| case GL_SHADER_COMPILER: |
| return 1; |
| case GL_STENCIL_BACK_FAIL: |
| return 1; |
| case GL_STENCIL_BACK_FUNC: |
| return 1; |
| case GL_STENCIL_BACK_PASS_DEPTH_FAIL: |
| return 1; |
| case GL_STENCIL_BACK_PASS_DEPTH_PASS: |
| return 1; |
| case GL_STENCIL_BACK_REF: |
| return 1; |
| case GL_STENCIL_BACK_VALUE_MASK: |
| return 1; |
| case GL_STENCIL_BACK_WRITEMASK: |
| return 1; |
| case GL_STENCIL_BITS: |
| return 1; |
| case GL_STENCIL_CLEAR_VALUE: |
| return 1; |
| case GL_STENCIL_FAIL: |
| return 1; |
| case GL_STENCIL_FUNC: |
| return 1; |
| case GL_STENCIL_PASS_DEPTH_FAIL: |
| return 1; |
| case GL_STENCIL_PASS_DEPTH_PASS: |
| return 1; |
| case GL_STENCIL_REF: |
| return 1; |
| case GL_STENCIL_TEST: |
| return 1; |
| case GL_STENCIL_VALUE_MASK: |
| return 1; |
| case GL_STENCIL_WRITEMASK: |
| return 1; |
| case GL_SUBPIXEL_BITS: |
| return 1; |
| case GL_TEXTURE_BINDING_2D: |
| return 1; |
| case GL_TEXTURE_BINDING_CUBE_MAP: |
| return 1; |
| case GL_TEXTURE_BINDING_EXTERNAL_OES: |
| return 1; |
| case GL_TEXTURE_BINDING_RECTANGLE_ARB: |
| return 1; |
| case GL_UNPACK_ALIGNMENT: |
| return 1; |
| case GL_VIEWPORT: |
| return 4; |
| |
| // ES3 |
| case GL_COPY_READ_BUFFER_BINDING: |
| return 1; |
| case GL_COPY_WRITE_BUFFER_BINDING: |
| return 1; |
| case GL_MAX_3D_TEXTURE_SIZE: |
| return 1; |
| case GL_MAX_ARRAY_TEXTURE_LAYERS: |
| return 1; |
| case GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS: |
| return 1; |
| case GL_MAX_COMBINED_UNIFORM_BLOCKS: |
| return 1; |
| case GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS: |
| return 1; |
| case GL_MAX_ELEMENT_INDEX: |
| return 1; |
| case GL_MAX_ELEMENTS_INDICES: |
| return 1; |
| case GL_MAX_ELEMENTS_VERTICES: |
| return 1; |
| case GL_MAX_FRAGMENT_INPUT_COMPONENTS: |
| return 1; |
| case GL_MAX_FRAGMENT_UNIFORM_BLOCKS: |
| return 1; |
| case GL_MAX_FRAGMENT_UNIFORM_COMPONENTS: |
| return 1; |
| case GL_MAX_PROGRAM_TEXEL_OFFSET: |
| return 1; |
| case GL_MAX_SERVER_WAIT_TIMEOUT: |
| return 1; |
| case GL_MAX_TEXTURE_LOD_BIAS: |
| return 1; |
| case GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS: |
| return 1; |
| case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS: |
| return 1; |
| case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS: |
| return 1; |
| case GL_MAX_UNIFORM_BLOCK_SIZE: |
| return 1; |
| case GL_MAX_UNIFORM_BUFFER_BINDINGS: |
| return 1; |
| case GL_MAX_VARYING_COMPONENTS: |
| return 1; |
| case GL_MAX_VERTEX_OUTPUT_COMPONENTS: |
| return 1; |
| case GL_MAX_VERTEX_UNIFORM_BLOCKS: |
| return 1; |
| case GL_MAX_VERTEX_UNIFORM_COMPONENTS: |
| return 1; |
| case GL_MIN_PROGRAM_TEXEL_OFFSET: |
| return 1; |
| case GL_PIXEL_PACK_BUFFER_BINDING: |
| return 1; |
| case GL_PIXEL_UNPACK_BUFFER_BINDING: |
| return 1; |
| case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING: |
| return 1; |
| case GL_TRANSFORM_FEEDBACK_BUFFER_MODE: |
| return 1; |
| case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE: |
| return 1; |
| case GL_TRANSFORM_FEEDBACK_BUFFER_START: |
| return 1; |
| case GL_UNIFORM_BUFFER_BINDING: |
| return 1; |
| case GL_UNIFORM_BUFFER_SIZE: |
| return 1; |
| case GL_UNIFORM_BUFFER_START: |
| return 1; |
| case GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT: |
| return 1; |
| |
| // ES31 |
| case GL_ATOMIC_COUNTER_BUFFER_BINDING: |
| return 1; |
| case GL_ATOMIC_COUNTER_BUFFER_SIZE: |
| return 1; |
| case GL_ATOMIC_COUNTER_BUFFER_START: |
| return 1; |
| case GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS: |
| return 1; |
| case GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS: |
| return 1; |
| case GL_SHADER_STORAGE_BUFFER_BINDING: |
| return 1; |
| case GL_SHADER_STORAGE_BUFFER_SIZE: |
| return 1; |
| case GL_SHADER_STORAGE_BUFFER_START: |
| return 1; |
| case GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT: |
| return 1; |
| |
| // -- glGetBooleanv, glGetFloatv, glGetIntergerv with |
| // GL_CHROMIUM_framebuffer_multisample |
| case GL_MAX_SAMPLES_EXT: |
| return 1; |
| case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: |
| return 1; |
| |
| // -- glGetBooleanv, glGetFloatv, glGetIntergerv with |
| // GL_EXT_window_rectangles |
| case GL_WINDOW_RECTANGLE_MODE_EXT: |
| return 1; |
| case GL_MAX_WINDOW_RECTANGLES_EXT: |
| return 1; |
| case GL_NUM_WINDOW_RECTANGLES_EXT: |
| return 1; |
| |
| // -- glGetBufferParameteriv |
| case GL_BUFFER_SIZE: |
| return 1; |
| case GL_BUFFER_USAGE: |
| return 1; |
| |
| // ES3 |
| case GL_BUFFER_MAPPED: |
| return 1; |
| case GL_BUFFER_ACCESS_FLAGS: |
| return 1; |
| case GL_BUFFER_MAP_LENGTH: |
| return 1; |
| case GL_BUFFER_MAP_OFFSET: |
| return 1; |
| |
| // -- glGetFramebufferAttachmentParameteriv |
| case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: |
| return 1; |
| // -- glGetFramebufferAttachmentParameteriv with |
| // GL_EXT_multisampled_render_to_texture |
| case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT: |
| return 1; |
| // -- glGetFramebufferAttachmentParameteriv with |
| // GL_EXT_sRGB |
| case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT: |
| return 1; |
| // ES3 |
| case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE: |
| return 1; |
| case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER: |
| return 1; |
| |
| // -- glGetProgramiv |
| case GL_DELETE_STATUS: |
| return 1; |
| case GL_LINK_STATUS: |
| return 1; |
| case GL_VALIDATE_STATUS: |
| return 1; |
| case GL_INFO_LOG_LENGTH: |
| return 1; |
| case GL_ATTACHED_SHADERS: |
| return 1; |
| case GL_ACTIVE_ATTRIBUTES: |
| return 1; |
| case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH: |
| return 1; |
| case GL_ACTIVE_UNIFORMS: |
| return 1; |
| case GL_ACTIVE_UNIFORM_MAX_LENGTH: |
| return 1; |
| |
| // -- glGetRenderbufferAttachmentParameteriv |
| case GL_RENDERBUFFER_WIDTH: |
| return 1; |
| case GL_RENDERBUFFER_HEIGHT: |
| return 1; |
| case GL_RENDERBUFFER_INTERNAL_FORMAT: |
| return 1; |
| case GL_RENDERBUFFER_RED_SIZE: |
| return 1; |
| case GL_RENDERBUFFER_GREEN_SIZE: |
| return 1; |
| case GL_RENDERBUFFER_BLUE_SIZE: |
| return 1; |
| case GL_RENDERBUFFER_ALPHA_SIZE: |
| return 1; |
| case GL_RENDERBUFFER_DEPTH_SIZE: |
| return 1; |
| case GL_RENDERBUFFER_STENCIL_SIZE: |
| return 1; |
| // -- glGetRenderbufferAttachmentParameteriv with |
| // GL_EXT_multisampled_render_to_texture |
| case GL_RENDERBUFFER_SAMPLES_EXT: |
| return 1; |
| |
| // -- glGetShaderiv |
| case GL_SHADER_TYPE: |
| return 1; |
| // Already defined under glGetFramebufferAttachemntParameteriv. |
| // case GL_DELETE_STATUS: |
| // return 1; |
| case GL_COMPILE_STATUS: |
| return 1; |
| // Already defined under glGetFramebufferAttachemntParameteriv. |
| // case GL_INFO_LOG_LENGTH: |
| // return 1; |
| case GL_SHADER_SOURCE_LENGTH: |
| return 1; |
| case GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE: |
| return 1; |
| |
| // -- glGetTexParameterfv, glGetTexParameteriv |
| case GL_TEXTURE_MAG_FILTER: |
| return 1; |
| case GL_TEXTURE_MIN_FILTER: |
| return 1; |
| case GL_TEXTURE_WRAP_R: |
| return 1; |
| case GL_TEXTURE_WRAP_S: |
| return 1; |
| case GL_TEXTURE_WRAP_T: |
| return 1; |
| case GL_TEXTURE_COMPARE_FUNC: |
| return 1; |
| case GL_TEXTURE_COMPARE_MODE: |
| return 1; |
| case GL_TEXTURE_MAX_LOD: |
| return 1; |
| case GL_TEXTURE_MIN_LOD: |
| return 1; |
| case GL_TEXTURE_BASE_LEVEL: |
| return 1; |
| case GL_TEXTURE_MAX_LEVEL: |
| return 1; |
| case GL_TEXTURE_IMMUTABLE_FORMAT: |
| return 1; |
| case GL_TEXTURE_IMMUTABLE_LEVELS: |
| return 1; |
| case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
| return 1; |
| case GL_TEXTURE_SWIZZLE_R: |
| return 1; |
| case GL_TEXTURE_SWIZZLE_G: |
| return 1; |
| case GL_TEXTURE_SWIZZLE_B: |
| return 1; |
| case GL_TEXTURE_SWIZZLE_A: |
| return 1; |
| |
| // -- glGetVertexAttrib |
| case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_ENABLED: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_SIZE: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_STRIDE: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_TYPE: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED: |
| return 1; |
| case GL_CURRENT_VERTEX_ATTRIB: |
| return 4; |
| case GL_VERTEX_ATTRIB_ARRAY_INTEGER: |
| return 1; |
| case GL_VERTEX_ATTRIB_ARRAY_DIVISOR: |
| return 1; |
| |
| // -- glGetSynciv |
| case GL_OBJECT_TYPE: |
| return 1; |
| case GL_SYNC_STATUS: |
| return 1; |
| case GL_SYNC_CONDITION: |
| return 1; |
| case GL_SYNC_FLAGS: |
| return 1; |
| |
| // -- glHint with GL_OES_standard_derivatives |
| case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: |
| return 1; |
| |
| // Chromium internal bind_generates_resource query |
| case GL_BIND_GENERATES_RESOURCE_CHROMIUM: |
| return 1; |
| |
| // bad enum |
| default: |
| return 0; |
| } |
| } |
| |
| namespace { |
| |
| // Return the number of bytes per element, based on the element type. |
| uint32_t BytesPerElement(int type) { |
| switch (type) { |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| return 8; |
| case GL_FLOAT: |
| case GL_UNSIGNED_INT_24_8_OES: |
| case GL_UNSIGNED_INT: |
| case GL_INT: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| return 4; |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| case GL_UNSIGNED_SHORT: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| return 2; |
| case GL_UNSIGNED_BYTE: |
| case GL_BYTE: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| } // anonymous namespace |
| |
| // Return the number of elements per group of a specified format. |
| uint32_t GLES2Util::ElementsPerGroup(int format, int type) { |
| switch (type) { |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_INT_24_8_OES: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| return 1; |
| default: |
| break; |
| } |
| |
| switch (format) { |
| case GL_RGB: |
| case GL_RGB_INTEGER: |
| case GL_SRGB_EXT: |
| return 3; |
| case GL_LUMINANCE_ALPHA: |
| case GL_RG_EXT: |
| case GL_RG_INTEGER: |
| return 2; |
| case GL_RGBA: |
| case GL_RGBA_INTEGER: |
| case GL_BGRA_EXT: |
| case GL_SRGB_ALPHA_EXT: |
| return 4; |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT24_OES: |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH24_STENCIL8_OES: |
| case GL_DEPTH_STENCIL_OES: |
| case GL_RED_EXT: |
| case GL_RED_INTEGER: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::ComputeImageGroupSize(int format, int type) { |
| uint32_t bytes_per_element = BytesPerElement(type); |
| DCHECK_GE(8u, bytes_per_element); |
| uint32_t elements_per_group = ElementsPerGroup(format, type); |
| DCHECK_GE(4u, elements_per_group); |
| return bytes_per_element * elements_per_group; |
| } |
| |
| bool GLES2Util::ComputeImageRowSizeHelper(int width, |
| uint32_t bytes_per_group, |
| int alignment, |
| uint32_t* rt_unpadded_row_size, |
| uint32_t* rt_padded_row_size, |
| uint32_t* rt_padding) { |
| DCHECK(alignment == 1 || alignment == 2 || |
| alignment == 4 || alignment == 8); |
| uint32_t unpadded_row_size; |
| if (!SafeMultiplyUint32(width, bytes_per_group, &unpadded_row_size)) { |
| return false; |
| } |
| uint32_t residual = unpadded_row_size % alignment; |
| uint32_t padding = 0; |
| uint32_t padded_row_size = unpadded_row_size; |
| if (residual > 0) { |
| padding = alignment - residual; |
| if (!SafeAddUint32(unpadded_row_size, padding, &padded_row_size)) { |
| return false; |
| } |
| } |
| |
| if (rt_unpadded_row_size) |
| *rt_unpadded_row_size = unpadded_row_size; |
| if (rt_padded_row_size) |
| *rt_padded_row_size = padded_row_size; |
| if (rt_padding) |
| *rt_padding = padding; |
| return true; |
| } |
| |
| bool GLES2Util::ComputeImagePaddedRowSize(int width, |
| int format, |
| int type, |
| int alignment, |
| uint32_t* padded_row_size) { |
| uint32_t bytes_per_group = ComputeImageGroupSize(format, type); |
| return ComputeImageRowSizeHelper( |
| width, bytes_per_group, alignment, nullptr, padded_row_size, nullptr); |
| } |
| |
| // Returns the amount of data glTexImage*D or glTexSubImage*D will access. |
| bool GLES2Util::ComputeImageDataSizes(int width, |
| int height, |
| int depth, |
| int format, |
| int type, |
| int alignment, |
| uint32_t* size, |
| uint32_t* opt_unpadded_row_size, |
| uint32_t* opt_padded_row_size) { |
| PixelStoreParams params; |
| params.alignment = alignment; |
| return ComputeImageDataSizesES3( |
| width, height, depth, format, type, params, |
| size, opt_unpadded_row_size, opt_padded_row_size, nullptr, nullptr); |
| } |
| |
| bool GLES2Util::ComputeImageDataSizesES3( |
| int width, int height, int depth, int format, int type, |
| const PixelStoreParams& params, |
| uint32_t* size, uint32_t* opt_unpadded_row_size, |
| uint32_t* opt_padded_row_size, uint32_t* opt_skip_size, |
| uint32_t* opt_padding) { |
| DCHECK(width >= 0 && height >= 0 && depth >= 0); |
| |
| uint32_t bytes_per_group = ComputeImageGroupSize(format, type); |
| |
| uint32_t unpadded_row_size; |
| uint32_t padded_row_size; |
| if (!ComputeImageRowSizeHelper(width, bytes_per_group, params.alignment, |
| &unpadded_row_size, &padded_row_size, |
| opt_padding)) { |
| return false; |
| } |
| if (params.row_length > 0 && |
| !ComputeImageRowSizeHelper(params.row_length, bytes_per_group, |
| params.alignment, nullptr, &padded_row_size, |
| opt_padding)) { |
| // Here we re-compute the padded_row_size, but the unpadded_row_size |
| // isn't affected. That is, the last row isn't affected by ROW_LENGTH. |
| return false; |
| } |
| |
| int image_height = params.image_height > 0 ? params.image_height : height; |
| uint32_t num_of_rows; |
| if (depth > 0) { |
| if (!SafeMultiplyUint32(image_height, depth - 1, &num_of_rows) || |
| !SafeAddUint32(num_of_rows, height, &num_of_rows)) { |
| return false; |
| } |
| } else { |
| num_of_rows = 0; |
| } |
| |
| if (num_of_rows > 0) { |
| uint32_t size_of_all_but_last_row; |
| if (!SafeMultiplyUint32((num_of_rows - 1), padded_row_size, |
| &size_of_all_but_last_row)) { |
| return false; |
| } |
| if (!SafeAddUint32(size_of_all_but_last_row, unpadded_row_size, size)) { |
| return false; |
| } |
| } else { |
| *size = 0; |
| } |
| |
| uint32_t skip_size = 0; |
| if (params.skip_images > 0) { |
| uint32_t image_size; |
| if (!SafeMultiplyUint32(image_height, padded_row_size, &image_size)) |
| return false; |
| if (!SafeMultiplyUint32(image_size, params.skip_images, &skip_size)) |
| return false; |
| } |
| if (params.skip_rows > 0) { |
| uint32_t temp; |
| if (!SafeMultiplyUint32(padded_row_size, params.skip_rows, &temp)) |
| return false; |
| if (!SafeAddUint32(skip_size, temp, &skip_size)) |
| return false; |
| } |
| if (params.skip_pixels > 0) { |
| uint32_t temp; |
| if (!SafeMultiplyUint32(bytes_per_group, params.skip_pixels, &temp)) |
| return false; |
| if (!SafeAddUint32(skip_size, temp, &skip_size)) |
| return false; |
| } |
| uint32_t total_size; |
| if (!SafeAddUint32(*size, skip_size, &total_size)) |
| return false; |
| |
| if (opt_padded_row_size) { |
| *opt_padded_row_size = padded_row_size; |
| } |
| if (opt_unpadded_row_size) { |
| *opt_unpadded_row_size = unpadded_row_size; |
| } |
| if (opt_skip_size) |
| *opt_skip_size = skip_size; |
| return true; |
| } |
| |
| uint32_t GLES2Util::RenderbufferBytesPerPixel(int format) { |
| switch (format) { |
| case GL_STENCIL_INDEX8: |
| return 1; |
| case GL_RGBA4: |
| case GL_RGB565: |
| case GL_RGB5_A1: |
| case GL_DEPTH_COMPONENT16: |
| return 2; |
| case GL_RGB: |
| case GL_RGBA: |
| case GL_DEPTH24_STENCIL8_OES: |
| case GL_RGB8_OES: |
| case GL_RGBA8_OES: |
| case GL_DEPTH_COMPONENT24_OES: |
| return 4; |
| default: |
| return 0; |
| } |
| } |
| |
| uint8_t GLES2Util::StencilBitsPerPixel(int format) { |
| switch (format) { |
| case GL_STENCIL_INDEX8: |
| case GL_DEPTH24_STENCIL8_OES: |
| return 8; |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetElementSizeForUniformType(int type) { |
| switch (type) { |
| case GL_FLOAT: |
| case GL_FLOAT_VEC2: |
| case GL_FLOAT_VEC3: |
| case GL_FLOAT_VEC4: |
| case GL_FLOAT_MAT2: |
| case GL_FLOAT_MAT3: |
| case GL_FLOAT_MAT4: |
| return sizeof(GLfloat); |
| case GL_INT: |
| case GL_INT_VEC2: |
| case GL_INT_VEC3: |
| case GL_INT_VEC4: |
| case GL_BOOL: |
| case GL_BOOL_VEC2: |
| case GL_BOOL_VEC3: |
| case GL_BOOL_VEC4: |
| case GL_SAMPLER_2D: |
| case GL_SAMPLER_CUBE: |
| case GL_SAMPLER_2D_RECT_ARB: // extension. |
| case GL_SAMPLER_EXTERNAL_OES: // extension. |
| return sizeof(GLint); |
| |
| // ES3 types. |
| case GL_UNSIGNED_INT: |
| case GL_UNSIGNED_INT_VEC2: |
| case GL_UNSIGNED_INT_VEC3: |
| case GL_UNSIGNED_INT_VEC4: |
| return sizeof(GLuint); |
| case GL_SAMPLER_3D: |
| case GL_SAMPLER_2D_SHADOW: |
| case GL_SAMPLER_2D_ARRAY: |
| case GL_SAMPLER_2D_ARRAY_SHADOW: |
| case GL_SAMPLER_CUBE_SHADOW: |
| case GL_INT_SAMPLER_2D: |
| case GL_INT_SAMPLER_3D: |
| case GL_INT_SAMPLER_CUBE: |
| case GL_INT_SAMPLER_2D_ARRAY: |
| case GL_UNSIGNED_INT_SAMPLER_2D: |
| case GL_UNSIGNED_INT_SAMPLER_3D: |
| case GL_UNSIGNED_INT_SAMPLER_CUBE: |
| case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: |
| return sizeof(GLint); |
| case GL_FLOAT_MAT2x3: |
| case GL_FLOAT_MAT3x2: |
| case GL_FLOAT_MAT2x4: |
| case GL_FLOAT_MAT4x2: |
| case GL_FLOAT_MAT3x4: |
| case GL_FLOAT_MAT4x3: |
| return sizeof(GLfloat); |
| |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetElementCountForUniformType(int type) { |
| switch (type) { |
| case GL_FLOAT: |
| case GL_INT: |
| case GL_BOOL: |
| case GL_SAMPLER_2D: |
| case GL_SAMPLER_CUBE: |
| case GL_SAMPLER_2D_RECT_ARB: // extension. |
| case GL_SAMPLER_EXTERNAL_OES: // extension. |
| return 1; |
| case GL_FLOAT_VEC2: |
| case GL_INT_VEC2: |
| case GL_BOOL_VEC2: |
| return 2; |
| case GL_FLOAT_VEC3: |
| case GL_INT_VEC3: |
| case GL_BOOL_VEC3: |
| return 3; |
| case GL_FLOAT_VEC4: |
| case GL_INT_VEC4: |
| case GL_BOOL_VEC4: |
| case GL_FLOAT_MAT2: |
| return 4; |
| case GL_FLOAT_MAT3: |
| return 9; |
| case GL_FLOAT_MAT4: |
| return 16; |
| |
| // ES3 types. |
| case GL_UNSIGNED_INT: |
| case GL_SAMPLER_3D: |
| case GL_SAMPLER_2D_SHADOW: |
| case GL_SAMPLER_2D_ARRAY: |
| case GL_SAMPLER_2D_ARRAY_SHADOW: |
| case GL_SAMPLER_CUBE_SHADOW: |
| case GL_INT_SAMPLER_2D: |
| case GL_INT_SAMPLER_3D: |
| case GL_INT_SAMPLER_CUBE: |
| case GL_INT_SAMPLER_2D_ARRAY: |
| case GL_UNSIGNED_INT_SAMPLER_2D: |
| case GL_UNSIGNED_INT_SAMPLER_3D: |
| case GL_UNSIGNED_INT_SAMPLER_CUBE: |
| case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: |
| return 1; |
| case GL_UNSIGNED_INT_VEC2: |
| return 2; |
| case GL_UNSIGNED_INT_VEC3: |
| return 3; |
| case GL_UNSIGNED_INT_VEC4: |
| return 4; |
| case GL_FLOAT_MAT2x3: |
| case GL_FLOAT_MAT3x2: |
| return 6; |
| case GL_FLOAT_MAT2x4: |
| case GL_FLOAT_MAT4x2: |
| return 8; |
| case GL_FLOAT_MAT3x4: |
| case GL_FLOAT_MAT4x3: |
| return 12; |
| |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGLTypeSizeForTextures(uint32_t type) { |
| return BytesPerElement(type); |
| } |
| |
| uint32_t GLES2Util::GetGLTypeSizeForBuffers(uint32_t type) { |
| switch (type) { |
| case GL_BYTE: |
| return sizeof(GLbyte); // NOLINT |
| case GL_UNSIGNED_BYTE: |
| return sizeof(GLubyte); // NOLINT |
| case GL_SHORT: |
| return sizeof(GLshort); // NOLINT |
| case GL_UNSIGNED_SHORT: |
| return sizeof(GLushort); // NOLINT |
| case GL_INT: |
| return sizeof(GLint); // NOLINT |
| case GL_UNSIGNED_INT: |
| return sizeof(GLuint); // NOLINT |
| case GL_FLOAT: |
| return sizeof(GLfloat); // NOLINT |
| case GL_FIXED: |
| return sizeof(GLfixed); // NOLINT |
| case GL_HALF_FLOAT: |
| return sizeof(GLushort); // NOLINT |
| case GL_INT_2_10_10_10_REV: |
| return sizeof(GLint); // NOLINT |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| return sizeof(GLuint); // NOLINT |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGroupSizeForBufferType(uint32_t count, uint32_t type) { |
| DCHECK_LE(count, 4u); |
| uint32_t type_size = GetGLTypeSizeForBuffers(type); |
| // For packed types, group size equals to the type size. |
| if (type == GL_INT_2_10_10_10_REV || type == GL_UNSIGNED_INT_2_10_10_10_REV) { |
| DCHECK_EQ(4u, count); |
| return type_size; |
| } |
| return type_size * count; |
| } |
| |
| uint32_t GLES2Util::GetComponentCountForGLTransformType(uint32_t type) { |
| switch (type) { |
| case GL_TRANSLATE_X_CHROMIUM: |
| case GL_TRANSLATE_Y_CHROMIUM: |
| return 1; |
| case GL_TRANSLATE_2D_CHROMIUM: |
| return 2; |
| case GL_TRANSLATE_3D_CHROMIUM: |
| return 3; |
| case GL_AFFINE_2D_CHROMIUM: |
| case GL_TRANSPOSE_AFFINE_2D_CHROMIUM: |
| return 6; |
| case GL_AFFINE_3D_CHROMIUM: |
| case GL_TRANSPOSE_AFFINE_3D_CHROMIUM: |
| return 12; |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetCoefficientCountForGLPathFragmentInputGenMode( |
| uint32_t gen_mode) { |
| switch (gen_mode) { |
| case GL_EYE_LINEAR_CHROMIUM: |
| return 4; |
| case GL_OBJECT_LINEAR_CHROMIUM: |
| return 3; |
| case GL_CONSTANT_CHROMIUM: |
| return 1; |
| case GL_NONE: |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGLTypeSizeForPathCoordType(uint32_t type) { |
| switch (type) { |
| case GL_BYTE: |
| return sizeof(GLbyte); // NOLINT |
| case GL_UNSIGNED_BYTE: |
| return sizeof(GLubyte); // NOLINT |
| case GL_SHORT: |
| return sizeof(GLshort); // NOLINT |
| case GL_UNSIGNED_SHORT: |
| return sizeof(GLushort); // NOLINT |
| case GL_FLOAT: |
| return sizeof(GLfloat); // NOLINT |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGLTypeSizeForGLPathNameType(uint32_t type) { |
| switch (type) { |
| case GL_BYTE: |
| return sizeof(GLbyte); // NOLINT |
| case GL_UNSIGNED_BYTE: |
| return sizeof(GLubyte); // NOLINT |
| case GL_SHORT: |
| return sizeof(GLshort); // NOLINT |
| case GL_UNSIGNED_SHORT: |
| return sizeof(GLushort); // NOLINT |
| case GL_INT: |
| return sizeof(GLint); // NOLINT |
| case GL_UNSIGNED_INT: |
| return sizeof(GLuint); // NOLINT |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GLErrorToErrorBit(uint32_t error) { |
| switch (error) { |
| case GL_INVALID_ENUM: |
| return gl_error_bit::kInvalidEnum; |
| case GL_INVALID_VALUE: |
| return gl_error_bit::kInvalidValue; |
| case GL_INVALID_OPERATION: |
| return gl_error_bit::kInvalidOperation; |
| case GL_OUT_OF_MEMORY: |
| return gl_error_bit::kOutOfMemory; |
| case GL_INVALID_FRAMEBUFFER_OPERATION: |
| return gl_error_bit::kInvalidFramebufferOperation; |
| case GL_CONTEXT_LOST_KHR: |
| return gl_error_bit::kContextLost; |
| default: |
| NOTREACHED(); |
| return gl_error_bit::kNoError; |
| } |
| } |
| |
| uint32_t GLES2Util::GLErrorBitToGLError(uint32_t error_bit) { |
| switch (error_bit) { |
| case gl_error_bit::kInvalidEnum: |
| return GL_INVALID_ENUM; |
| case gl_error_bit::kInvalidValue: |
| return GL_INVALID_VALUE; |
| case gl_error_bit::kInvalidOperation: |
| return GL_INVALID_OPERATION; |
| case gl_error_bit::kOutOfMemory: |
| return GL_OUT_OF_MEMORY; |
| case gl_error_bit::kInvalidFramebufferOperation: |
| return GL_INVALID_FRAMEBUFFER_OPERATION; |
| case gl_error_bit::kContextLost: |
| return GL_CONTEXT_LOST_KHR; |
| default: |
| NOTREACHED(); |
| return GL_NO_ERROR; |
| } |
| } |
| |
| uint32_t GLES2Util::IndexToGLFaceTarget(int index) { |
| static uint32_t faces[] = { |
| GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, |
| GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, |
| GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, |
| }; |
| return faces[index]; |
| } |
| |
| size_t GLES2Util::GLTargetToFaceIndex(uint32_t target) { |
| switch (target) { |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_EXTERNAL_OES: |
| case GL_TEXTURE_RECTANGLE_ARB: |
| case GL_TEXTURE_3D: |
| case GL_TEXTURE_2D_ARRAY: |
| return 0; |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_X: |
| return 0; |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: |
| return 1; |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: |
| return 2; |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: |
| return 3; |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: |
| return 4; |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: |
| return 5; |
| default: |
| NOTREACHED(); |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GLFaceTargetToTextureTarget(uint32_t target) { |
| switch (target) { |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_EXTERNAL_OES: |
| case GL_TEXTURE_RECTANGLE_ARB: |
| case GL_TEXTURE_3D: |
| case GL_TEXTURE_2D_ARRAY: |
| return target; |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_X: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: |
| return GL_TEXTURE_CUBE_MAP; |
| default: |
| NOTREACHED(); |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGLReadPixelsImplementationFormat( |
| uint32_t internal_format, |
| uint32_t texture_type, |
| bool supports_bgra) { |
| switch (internal_format) { |
| case GL_R8: |
| case GL_R16F: |
| case GL_R32F: |
| return GL_RED; |
| case GL_R8UI: |
| case GL_R8I: |
| case GL_R16UI: |
| case GL_R16I: |
| case GL_R32UI: |
| case GL_R32I: |
| return GL_RED_INTEGER; |
| case GL_RG8: |
| case GL_RG16F: |
| case GL_RG32F: |
| return GL_RG; |
| case GL_RG8UI: |
| case GL_RG8I: |
| case GL_RG16UI: |
| case GL_RG16I: |
| case GL_RG32UI: |
| case GL_RG32I: |
| return GL_RG_INTEGER; |
| case GL_RGB: |
| case GL_RGB8: |
| case GL_RGB565: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB16F: |
| case GL_RGB32F: |
| return GL_RGB; |
| case GL_RGBA8UI: |
| case GL_RGBA8I: |
| case GL_RGB10_A2UI: |
| case GL_RGBA16UI: |
| case GL_RGBA16I: |
| case GL_RGBA32UI: |
| case GL_RGBA32I: |
| return GL_RGBA_INTEGER; |
| case GL_BGRA_EXT: |
| case GL_BGRA8_EXT: |
| // If the internal format is BGRA, we prefer reading back BGRA if |
| // possible. |
| if (texture_type == GL_UNSIGNED_BYTE && supports_bgra) |
| return GL_BGRA_EXT; |
| else |
| return GL_RGBA; |
| default: |
| return GL_RGBA; |
| } |
| } |
| |
| uint32_t GLES2Util::GetGLReadPixelsImplementationType(uint32_t internal_format, |
| uint32_t texture_type) { |
| switch (internal_format) { |
| case GL_R16UI: |
| case GL_RG16UI: |
| case GL_RGBA16UI: |
| case GL_RGB10_A2: |
| case GL_RGB10_A2UI: |
| return GL_UNSIGNED_SHORT; |
| case GL_R32UI: |
| case GL_RG32UI: |
| case GL_RGBA32UI: |
| return GL_UNSIGNED_INT; |
| case GL_R8I: |
| case GL_RG8I: |
| case GL_RGBA8I: |
| return GL_BYTE; |
| case GL_R16I: |
| case GL_RG16I: |
| case GL_RGBA16I: |
| return GL_SHORT; |
| case GL_R32I: |
| case GL_RG32I: |
| case GL_RGBA32I: |
| return GL_INT; |
| case GL_R32F: |
| case GL_RG32F: |
| case GL_RGB32F: |
| case GL_RGBA32F: |
| case GL_R11F_G11F_B10F: |
| return GL_UNSIGNED_BYTE; |
| case GL_R16F: |
| case GL_RG16F: |
| case GL_RGB16F: |
| case GL_RGBA16F: |
| return GL_HALF_FLOAT; |
| default: |
| // Unsized internal format. |
| return texture_type; |
| } |
| } |
| |
| uint32_t GLES2Util::GetChannelsForFormat(int format) { |
| switch (format) { |
| case GL_ALPHA: |
| case GL_ALPHA16F_EXT: |
| case GL_ALPHA32F_EXT: |
| return kAlpha; |
| case GL_LUMINANCE: |
| return kRGB; |
| case GL_LUMINANCE_ALPHA: |
| return kRGBA; |
| case GL_RGB: |
| case GL_RGB8_OES: |
| case GL_RGB565: |
| case GL_RGB16F_EXT: |
| case GL_RGB32F_EXT: |
| case GL_SRGB_EXT: |
| case GL_SRGB8: |
| case GL_RGB8_SNORM: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB9_E5: |
| case GL_RGB8UI: |
| case GL_RGB8I: |
| case GL_RGB16UI: |
| case GL_RGB16I: |
| case GL_RGB32UI: |
| case GL_RGB32I: |
| return kRGB; |
| case GL_BGRA_EXT: |
| case GL_BGRA8_EXT: |
| case GL_RGBA16F_EXT: |
| case GL_RGBA32F_EXT: |
| case GL_RGBA: |
| case GL_RGBA8_OES: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_SRGB_ALPHA_EXT: |
| case GL_SRGB8_ALPHA8_EXT: |
| case GL_RGBA8_SNORM: |
| case GL_RGB10_A2: |
| case GL_RGBA8UI: |
| case GL_RGBA8I: |
| case GL_RGB10_A2UI: |
| case GL_RGBA16UI: |
| case GL_RGBA16I: |
| case GL_RGBA32UI: |
| case GL_RGBA32I: |
| return kRGBA; |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH_COMPONENT24_OES: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT32F: |
| return kDepth; |
| case GL_STENCIL_INDEX8: |
| return kStencil; |
| case GL_DEPTH_STENCIL_OES: |
| case GL_DEPTH24_STENCIL8_OES: |
| case GL_DEPTH32F_STENCIL8: |
| return kDepth | kStencil; |
| case GL_RED_EXT: |
| case GL_R8: |
| case GL_R8_SNORM: |
| case GL_R16F: |
| case GL_R32F: |
| case GL_R8UI: |
| case GL_R8I: |
| case GL_R16UI: |
| case GL_R16I: |
| case GL_R32UI: |
| case GL_R32I: |
| return kRed; |
| case GL_RG_EXT: |
| case GL_RG8: |
| case GL_RG8_SNORM: |
| case GL_RG16F: |
| case GL_RG32F: |
| case GL_RG8UI: |
| case GL_RG8I: |
| case GL_RG16UI: |
| case GL_RG16I: |
| case GL_RG32UI: |
| case GL_RG32I: |
| return kRed | kGreen; |
| default: |
| return 0x0000; |
| } |
| } |
| |
| bool GLES2Util::IsSizedColorFormat(uint32_t internal_format) { |
| switch (internal_format) { |
| case GL_ALPHA16F_EXT: |
| case GL_ALPHA32F_EXT: |
| case GL_RGB8: |
| case GL_RGB565: |
| case GL_RGB16F: |
| case GL_RGB32F: |
| case GL_SRGB8: |
| case GL_RGB8_SNORM: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB9_E5: |
| case GL_RGB8UI: |
| case GL_RGB8I: |
| case GL_RGB16UI: |
| case GL_RGB16I: |
| case GL_RGB32UI: |
| case GL_RGB32I: |
| case GL_BGRA8_EXT: |
| case GL_RGBA16F: |
| case GL_RGBA32F: |
| case GL_RGBA8_OES: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_SRGB8_ALPHA8: |
| case GL_RGBA8_SNORM: |
| case GL_RGB10_A2: |
| case GL_RGBA8UI: |
| case GL_RGBA8I: |
| case GL_RGB10_A2UI: |
| case GL_RGBA16UI: |
| case GL_RGBA16I: |
| case GL_RGBA32UI: |
| case GL_RGBA32I: |
| case GL_R8: |
| case GL_R8_SNORM: |
| case GL_R16F: |
| case GL_R32F: |
| case GL_R8UI: |
| case GL_R8I: |
| case GL_R16UI: |
| case GL_R16I: |
| case GL_R32UI: |
| case GL_R32I: |
| case GL_RG8: |
| case GL_RG8_SNORM: |
| case GL_RG16F: |
| case GL_RG32F: |
| case GL_RG8UI: |
| case GL_RG8I: |
| case GL_RG16UI: |
| case GL_RG16I: |
| case GL_RG32UI: |
| case GL_RG32I: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| GLint GLES2Util::GetColorEncodingFromInternalFormat(uint32_t internalformat) { |
| switch (internalformat) { |
| case GL_SRGB_EXT: |
| case GL_SRGB_ALPHA_EXT: |
| case GL_SRGB8: |
| case GL_SRGB8_ALPHA8: |
| return GL_SRGB; |
| default: |
| return GL_LINEAR; |
| } |
| } |
| |
| void GLES2Util::GetColorFormatComponentSizes( |
| uint32_t internal_format, uint32_t type, int* r, int* g, int* b, int* a) { |
| DCHECK(r && g && b && a); |
| *r = 0; |
| *g = 0; |
| *b = 0; |
| *a = 0; |
| |
| switch (internal_format) { |
| case GL_LUMINANCE: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| // It can be RGBA8, RGB8, RG8, or R8. |
| // Here we only require R8, which is good enough for validation. |
| // Same for other types. |
| internal_format = GL_R8; |
| break; |
| case GL_HALF_FLOAT_OES: |
| internal_format = GL_R16F; |
| break; |
| case GL_FLOAT: |
| internal_format = GL_R32F; |
| return; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_LUMINANCE_ALPHA: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| internal_format = GL_RGBA8; |
| break; |
| case GL_HALF_FLOAT_OES: |
| internal_format = GL_RGBA16F; |
| break; |
| case GL_FLOAT: |
| internal_format = GL_RGBA32F; |
| return; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| default: |
| internal_format = ConvertToSizedFormat(internal_format, type); |
| break; |
| } |
| |
| // Sized formats. |
| switch (internal_format) { |
| case GL_ALPHA8_EXT: |
| *a = 8; |
| break; |
| case GL_ALPHA16F_EXT: |
| *a = 16; |
| break; |
| case GL_ALPHA32F_EXT: |
| *a = 32; |
| break; |
| case GL_RGB8_OES: |
| case GL_SRGB8: |
| case GL_RGB8_SNORM: |
| case GL_RGB8UI: |
| case GL_RGB8I: |
| *r = 8; |
| *g = 8; |
| *b = 8; |
| break; |
| case GL_RGB565: |
| *r = 5; |
| *g = 6; |
| *b = 5; |
| break; |
| case GL_RGB16F: |
| case GL_RGB16UI: |
| case GL_RGB16I: |
| *r = 16; |
| *g = 16; |
| *b = 16; |
| break; |
| case GL_RGB32F: |
| case GL_RGB32UI: |
| case GL_RGB32I: |
| *r = 32; |
| *g = 32; |
| *b = 32; |
| break; |
| case GL_R11F_G11F_B10F: |
| *r = 11; |
| *g = 11; |
| *b = 10; |
| break; |
| case GL_RGB9_E5: |
| *r = 9; |
| *g = 9; |
| *b = 9; |
| break; |
| case GL_BGRA8_EXT: |
| case GL_RGBA8: |
| case GL_SRGB8_ALPHA8: |
| case GL_RGBA8_SNORM: |
| case GL_RGBA8UI: |
| case GL_RGBA8I: |
| *r = 8; |
| *g = 8; |
| *b = 8; |
| *a = 8; |
| break; |
| case GL_RGBA16F_EXT: |
| case GL_RGBA16UI: |
| case GL_RGBA16I: |
| *r = 16; |
| *g = 16; |
| *b = 16; |
| *a = 16; |
| break; |
| case GL_RGBA32F_EXT: |
| case GL_RGBA32UI: |
| case GL_RGBA32I: |
| *r = 32; |
| *g = 32; |
| *b = 32; |
| *a = 32; |
| break; |
| case GL_RGBA4: |
| *r = 4; |
| *g = 4; |
| *b = 4; |
| *a = 4; |
| break; |
| case GL_RGB5_A1: |
| *r = 5; |
| *g = 5; |
| *b = 5; |
| *a = 1; |
| break; |
| case GL_RGB10_A2: |
| case GL_RGB10_A2UI: |
| *r = 10; |
| *g = 10; |
| *b = 10; |
| *a = 2; |
| break; |
| case GL_R8: |
| case GL_R8_SNORM: |
| case GL_R8UI: |
| case GL_R8I: |
| *r = 8; |
| break; |
| case GL_R16F: |
| case GL_R16UI: |
| case GL_R16I: |
| case GL_R16_EXT: |
| *r = 16; |
| break; |
| case GL_R32F: |
| case GL_R32UI: |
| case GL_R32I: |
| *r = 32; |
| break; |
| case GL_RG8: |
| case GL_RG8_SNORM: |
| case GL_RG8UI: |
| case GL_RG8I: |
| *r = 8; |
| *g = 8; |
| break; |
| case GL_RG16F: |
| case GL_RG16UI: |
| case GL_RG16I: |
| *r = 16; |
| *g = 16; |
| break; |
| case GL_RG32F: |
| case GL_RG32UI: |
| case GL_RG32I: |
| *r = 32; |
| *g = 32; |
| break; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| } |
| |
| uint32_t GLES2Util::GetChannelsNeededForAttachmentType( |
| int type, |
| uint32_t max_color_attachments) { |
| switch (type) { |
| case GL_DEPTH_ATTACHMENT: |
| return kDepth; |
| case GL_STENCIL_ATTACHMENT: |
| return kStencil; |
| default: |
| if (type >= GL_COLOR_ATTACHMENT0 && |
| type < static_cast<int>( |
| GL_COLOR_ATTACHMENT0 + max_color_attachments)) { |
| return kRGBA; |
| } |
| return 0x0000; |
| } |
| } |
| |
| std::string GLES2Util::GetStringEnum(uint32_t value) { |
| const EnumToString* entry = enum_to_string_table_; |
| const EnumToString* end = entry + enum_to_string_table_len_; |
| for (; entry < end; ++entry) { |
| if (value == entry->value) |
| return entry->name; |
| } |
| std::stringstream ss; |
| ss.fill('0'); |
| ss.width(value < 0x10000 ? 4 : 8); |
| ss << std::hex << value; |
| return "0x" + ss.str(); |
| } |
| |
| std::string GLES2Util::GetStringError(uint32_t value) { |
| static EnumToString string_table[] = { |
| { GL_NONE, "GL_NONE" }, |
| }; |
| return GLES2Util::GetQualifiedEnumString(string_table, |
| base::size(string_table), value); |
| } |
| |
| std::string GLES2Util::GetStringBool(uint32_t value) { |
| return value ? "GL_TRUE" : "GL_FALSE"; |
| } |
| |
| std::string GLES2Util::GetQualifiedEnumString(const EnumToString* table, |
| size_t count, |
| uint32_t value) { |
| for (const EnumToString* end = table + count; table < end; ++table) { |
| if (table->value == value) { |
| return table->name; |
| } |
| } |
| return GetStringEnum(value); |
| } |
| |
| GLSLArrayName::GLSLArrayName(const std::string& name) : element_index_(-1) { |
| if (name.size() < 4) |
| return; |
| if (name.back() != ']') |
| return; |
| |
| size_t open_pos = name.find_last_of('['); |
| if (open_pos >= name.size() - 2) |
| return; |
| |
| base::CheckedNumeric<int> index = 0; |
| size_t last = name.size() - 1; |
| for (size_t pos = open_pos + 1; pos < last; ++pos) { |
| int8_t digit = name[pos] - '0'; |
| if (digit < 0 || digit > 9) |
| return; |
| index = index * 10 + digit; |
| } |
| if (!index.IsValid()) |
| return; |
| element_index_ = index.ValueOrDie(); |
| base_name_ = name.substr(0, open_pos); |
| } |
| |
| uint32_t GLES2Util::CalcClearBufferivDataCount(int buffer) { |
| switch (buffer) { |
| case GL_COLOR: |
| return 4; |
| case GL_STENCIL: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::CalcClearBufferfvDataCount(int buffer) { |
| switch (buffer) { |
| case GL_COLOR: |
| return 4; |
| case GL_DEPTH: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| uint32_t GLES2Util::CalcClearBufferuivDataCount(int buffer) { |
| switch (buffer) { |
| case GL_COLOR: |
| return 4; |
| default: |
| return 0; |
| } |
| } |
| |
| // static |
| void GLES2Util::MapUint64ToTwoUint32( |
| uint64_t v64, uint32_t* v32_0, uint32_t* v32_1) { |
| DCHECK(v32_0 && v32_1); |
| *v32_0 = static_cast<uint32_t>(v64 & 0xFFFFFFFF); |
| *v32_1 = static_cast<uint32_t>((v64 & 0xFFFFFFFF00000000) >> 32); |
| } |
| |
| // static |
| uint64_t GLES2Util::MapTwoUint32ToUint64(uint32_t v32_0, uint32_t v32_1) { |
| uint64_t v64 = v32_1; |
| return (v64 << 32) | v32_0; |
| } |
| |
| // static |
| uint32_t GLES2Util::MapBufferTargetToBindingEnum(uint32_t target) { |
| switch (target) { |
| case GL_ARRAY_BUFFER: |
| return GL_ARRAY_BUFFER_BINDING; |
| case GL_ATOMIC_COUNTER_BUFFER: |
| return GL_ATOMIC_COUNTER_BUFFER_BINDING; |
| case GL_COPY_READ_BUFFER: |
| return GL_COPY_READ_BUFFER_BINDING; |
| case GL_COPY_WRITE_BUFFER: |
| return GL_COPY_WRITE_BUFFER_BINDING; |
| case GL_ELEMENT_ARRAY_BUFFER: |
| return GL_ELEMENT_ARRAY_BUFFER_BINDING; |
| case GL_PIXEL_PACK_BUFFER: |
| return GL_PIXEL_PACK_BUFFER_BINDING; |
| case GL_PIXEL_UNPACK_BUFFER: |
| return GL_PIXEL_UNPACK_BUFFER_BINDING; |
| case GL_SHADER_STORAGE_BUFFER: |
| return GL_SHADER_STORAGE_BUFFER_BINDING; |
| case GL_TRANSFORM_FEEDBACK_BUFFER: |
| return GL_TRANSFORM_FEEDBACK_BUFFER_BINDING; |
| case GL_UNIFORM_BUFFER: |
| return GL_UNIFORM_BUFFER_BINDING; |
| default: |
| return 0; |
| } |
| } |
| |
| // static |
| bool GLES2Util::IsUnsignedIntegerFormat(uint32_t internal_format) { |
| switch (internal_format) { |
| case GL_R8UI: |
| case GL_R16UI: |
| case GL_R32UI: |
| case GL_RG8UI: |
| case GL_RG16UI: |
| case GL_RG32UI: |
| case GL_RGB8UI: |
| case GL_RGB16UI: |
| case GL_RGB32UI: |
| case GL_RGBA8UI: |
| case GL_RGB10_A2UI: |
| case GL_RGBA16UI: |
| case GL_RGBA32UI: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| // static |
| bool GLES2Util::IsSignedIntegerFormat(uint32_t internal_format) { |
| switch (internal_format) { |
| case GL_R8I: |
| case GL_R16I: |
| case GL_R32I: |
| case GL_RG8I: |
| case GL_RG16I: |
| case GL_RG32I: |
| case GL_RGB8I: |
| case GL_RGB16I: |
| case GL_RGB32I: |
| case GL_RGBA8I: |
| case GL_RGBA16I: |
| case GL_RGBA32I: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| // static |
| bool GLES2Util::IsIntegerFormat(uint32_t internal_format) { |
| return (IsUnsignedIntegerFormat(internal_format) || |
| IsSignedIntegerFormat(internal_format)); |
| } |
| |
| // static |
| bool GLES2Util::IsFloatFormat(uint32_t internal_format) { |
| switch (internal_format) { |
| case GL_R16F: |
| case GL_R32F: |
| case GL_RG16F: |
| case GL_RG32F: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB16F: |
| case GL_RGB32F: |
| case GL_RGBA16F: |
| case GL_RGBA32F: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| // static |
| uint32_t GLES2Util::ConvertToSizedFormat(uint32_t format, uint32_t type) { |
| switch (format) { |
| case GL_RGB: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_RGB8; |
| case GL_UNSIGNED_SHORT_5_6_5: |
| return GL_RGB565; |
| case GL_HALF_FLOAT_OES: |
| return GL_RGB16F; |
| case GL_FLOAT: |
| return GL_RGB32F; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_RGBA: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_RGBA8; |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| return GL_RGBA4; |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| return GL_RGB5_A1; |
| case GL_HALF_FLOAT_OES: |
| return GL_RGBA16F; |
| case GL_FLOAT: |
| return GL_RGBA32F; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_ALPHA: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_ALPHA8_EXT; |
| case GL_HALF_FLOAT_OES: |
| return GL_ALPHA16F_EXT; |
| case GL_FLOAT: |
| return GL_ALPHA32F_EXT; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_RED: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_R8; |
| case GL_HALF_FLOAT_OES: |
| return GL_R16F; |
| case GL_FLOAT: |
| return GL_R32F; |
| case GL_UNSIGNED_SHORT: |
| return GL_R16_EXT; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_RG: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_RG8; |
| case GL_HALF_FLOAT_OES: |
| return GL_RG16F; |
| case GL_FLOAT: |
| return GL_RG32F; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_SRGB_EXT: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_SRGB8; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_SRGB_ALPHA_EXT: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_SRGB8_ALPHA8; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| case GL_BGRA_EXT: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| return GL_BGRA8_EXT; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| return format; |
| } |
| |
| #include "gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h" |
| |
| } // namespace gles2 |
| } // namespace gpu |
