gl_state: Pack sampler bindings into a single ARB_multi_bind
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@ -41,6 +41,7 @@ public:
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static constexpr std::size_t NumCBData = 16;
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static constexpr std::size_t NumVertexArrays = 32;
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static constexpr std::size_t NumVertexAttributes = 32;
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static constexpr std::size_t NumTextureSamplers = 32;
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static constexpr std::size_t MaxShaderProgram = 6;
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static constexpr std::size_t MaxShaderStage = 5;
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// Maximum number of const buffers per shader stage.
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@ -184,7 +184,7 @@ private:
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OGLVertexArray>
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vertex_array_cache;
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std::array<SamplerInfo, GLShader::NumTextureSamplers> texture_samplers;
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std::array<SamplerInfo, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> texture_samplers;
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static constexpr std::size_t STREAM_BUFFER_SIZE = 128 * 1024 * 1024;
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OGLBufferCache buffer_cache;
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@ -11,9 +11,6 @@
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namespace OpenGL::GLShader {
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/// Number of OpenGL texture samplers that can be used in the fragment shader
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static constexpr std::size_t NumTextureSamplers = 32;
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using Tegra::Engines::Maxwell3D;
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/// Uniform structure for the Uniform Buffer Object, all vectors must be 16-byte aligned
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@ -205,9 +205,6 @@ void OpenGLState::Apply() const {
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glActiveTexture(TextureUnits::MaxwellTexture(static_cast<int>(i)).Enum());
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glBindTexture(texture_unit.target, texture_unit.texture);
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}
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if (texture_unit.sampler != cur_state_texture_unit.sampler) {
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glBindSampler(static_cast<GLuint>(i), texture_unit.sampler);
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}
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// Update the texture swizzle
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if (texture_unit.swizzle.r != cur_state_texture_unit.swizzle.r ||
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texture_unit.swizzle.g != cur_state_texture_unit.swizzle.g ||
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@ -219,6 +216,27 @@ void OpenGLState::Apply() const {
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}
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}
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// Samplers
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{
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bool has_delta{};
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std::size_t first{}, last{};
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std::array<GLuint, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> samplers;
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for (std::size_t i = 0; i < std::size(samplers); ++i) {
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samplers[i] = texture_units[i].sampler;
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if (samplers[i] != cur_state.texture_units[i].sampler) {
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if (!has_delta) {
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first = i;
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has_delta = true;
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}
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last = i;
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}
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}
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if (has_delta) {
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glBindSamplers(static_cast<GLuint>(first), static_cast<GLsizei>(last - first + 1),
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samplers.data());
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}
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}
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// Framebuffer
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if (draw.read_framebuffer != cur_state.draw.read_framebuffer) {
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glBindFramebuffer(GL_READ_FRAMEBUFFER, draw.read_framebuffer);
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@ -6,6 +6,7 @@
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#include <array>
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#include <glad/glad.h>
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#include "video_core/engines/maxwell_3d.h"
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namespace OpenGL {
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@ -114,7 +115,7 @@ public:
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target = GL_TEXTURE_2D;
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}
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};
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std::array<TextureUnit, 32> texture_units;
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std::array<TextureUnit, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> texture_units;
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struct {
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GLuint read_framebuffer; // GL_READ_FRAMEBUFFER_BINDING
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