#include <capabilities_gles.h>

Public Member Functions
	CapabilitiesGLES (const ProcTableGLES &gl)

size_t	GetMaxTextureUnits (ShaderStage stage) const

Public Attributes
size_t	max_combined_texture_image_units = 8

size_t	max_cube_map_texture_size = 16

size_t	max_fragment_uniform_vectors = 16

size_t	max_renderbuffer_size = 1

size_t	max_texture_image_units = 8

ISize	max_texture_size = ISize{64, 64}

size_t	max_varying_vectors = 8

size_t	max_vertex_attribs = 8

size_t	max_vertex_texture_image_units = 0

size_t	max_vertex_uniform_vectors = 128

ISize	max_viewport_dims

size_t	num_compressed_texture_formats = 0

size_t	num_shader_binary_formats = 0

Detailed Description

Definition at line 17 of file capabilities_gles.h.

Constructor & Destructor Documentation

◆ CapabilitiesGLES()

impeller::CapabilitiesGLES::CapabilitiesGLES ( const ProcTableGLES & gl )

Definition at line 11 of file capabilities_gles.cc.

                                                           {
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &value);
     max_combined_texture_image_units = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &value);
     max_cube_map_texture_size = value;
   }
  
   if (gl.GetDescription()->IsES()) {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &value);
     max_fragment_uniform_vectors = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &value);
     max_renderbuffer_size = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &value);
     max_texture_image_units = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
     max_texture_size = ISize{value, value};
   }
  
   if (gl.GetDescription()->IsES()) {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_VARYING_VECTORS, &value);
     max_varying_vectors = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_VERTEX_ATTRIBS, &value);
     max_vertex_attribs = value;
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &value);
     max_vertex_texture_image_units = value;
   }
  
   if (gl.GetDescription()->IsES()) {
     GLint value = 0;
     gl.GetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &value);
     max_vertex_uniform_vectors = value;
   }
  
   {
     GLint values[2] = {};
     gl.GetIntegerv(GL_MAX_VIEWPORT_DIMS, values);
     max_viewport_dims = ISize{values[0], values[1]};
   }
  
   {
     GLint value = 0;
     gl.GetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &value);
     num_compressed_texture_formats = value;
   }
  
   if (gl.GetDescription()->IsES()) {
     GLint value = 0;
     gl.GetIntegerv(GL_NUM_SHADER_BINARY_FORMATS, &value);
     num_shader_binary_formats = value;
   }
 }

References impeller::ProcTableGLES::GetDescription(), impeller::DescriptionGLES::IsES(), max_combined_texture_image_units, max_cube_map_texture_size, max_fragment_uniform_vectors, max_renderbuffer_size, max_texture_image_units, max_texture_size, max_varying_vectors, max_vertex_attribs, max_vertex_texture_image_units, max_vertex_uniform_vectors, max_viewport_dims, num_compressed_texture_formats, and num_shader_binary_formats.

Member Function Documentation

◆ GetMaxTextureUnits()

size_t impeller::CapabilitiesGLES::GetMaxTextureUnits ( ShaderStage stage ) const

Definition at line 91 of file capabilities_gles.cc.

                                                                    {
   switch (stage) {
     case ShaderStage::kVertex:
       return max_vertex_texture_image_units;
     case ShaderStage::kFragment:
       return max_texture_image_units;
     case ShaderStage::kUnknown:
     case ShaderStage::kTessellationControl:
     case ShaderStage::kTessellationEvaluation:
     case ShaderStage::kCompute:
       return 0u;
   }
   FML_UNREACHABLE();
 }