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Improve OpenGL state handling

pull/15/merge
Rodolfo Bogado 7 years ago
parent
da5fcbf501
commit
aca218aea0
3 changed files with 158 additions and 105 deletions
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  1. 4
      src/video_core/renderer_opengl/gl_rasterizer.cpp
  2. 246
      src/video_core/renderer_opengl/gl_state.cpp
  3. 13
      src/video_core/renderer_opengl/gl_state.h

4
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -104,7 +104,7 @@ RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window, ScreenInfo
}
ASSERT_MSG(has_ARB_separate_shader_objects, "has_ARB_separate_shader_objects is unsupported");
OpenGLState::ApplyDefaultState();
// Clipping plane 0 is always enabled for PICA fixed clip plane z <= 0
state.clip_distance[0] = true;
@ -115,8 +115,6 @@ RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window, ScreenInfo
state.draw.shader_program = 0;
state.Apply();
glEnable(GL_BLEND);
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uniform_buffer_alignment);
LOG_CRITICAL(Render_OpenGL, "Sync fixed function OpenGL state here!");

246
src/video_core/renderer_opengl/gl_state.cpp
View File

@ -89,7 +89,18 @@ OpenGLState::OpenGLState() {
point.size = 1;
}
void OpenGLState::Apply() const {
void OpenGLState::ApplyDefaultState() {
glDisable(GL_FRAMEBUFFER_SRGB);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_PRIMITIVE_RESTART);
glDisable(GL_STENCIL_TEST);
glEnable(GL_BLEND);
glDisable(GL_COLOR_LOGIC_OP);
glDisable(GL_SCISSOR_TEST);
}
void OpenGLState::ApplySRgb() const {
// sRGB
if (framebuffer_srgb.enabled != cur_state.framebuffer_srgb.enabled) {
if (framebuffer_srgb.enabled) {
@ -100,96 +111,122 @@ void OpenGLState::Apply() const {
glDisable(GL_FRAMEBUFFER_SRGB);
}
}
}
void OpenGLState::ApplyCulling() const {
// Culling
if (cull.enabled != cur_state.cull.enabled) {
const bool cull_changed = cull.enabled != cur_state.cull.enabled;
if (cull_changed) {
if (cull.enabled) {
glEnable(GL_CULL_FACE);
} else {
glDisable(GL_CULL_FACE);
}
}
if (cull.enabled) {
if (cull_changed || cull.mode != cur_state.cull.mode) {
glCullFace(cull.mode);
}
if (cull.mode != cur_state.cull.mode) {
glCullFace(cull.mode);
}
if (cull.front_face != cur_state.cull.front_face) {
glFrontFace(cull.front_face);
if (cull_changed || cull.front_face != cur_state.cull.front_face) {
glFrontFace(cull.front_face);
}
}
}
void OpenGLState::ApplyDepth() const {
// Depth test
if (depth.test_enabled != cur_state.depth.test_enabled) {
const bool depth_test_changed = depth.test_enabled != cur_state.depth.test_enabled;
if (depth_test_changed) {
if (depth.test_enabled) {
glEnable(GL_DEPTH_TEST);
} else {
glDisable(GL_DEPTH_TEST);
}
}
if (depth.test_func != cur_state.depth.test_func) {
if (depth.test_enabled &&
(depth_test_changed || depth.test_func != cur_state.depth.test_func)) {
glDepthFunc(depth.test_func);
}
// Depth mask
if (depth.write_mask != cur_state.depth.write_mask) {
glDepthMask(depth.write_mask);
}
// Depth range
if (depth.depth_range_near != cur_state.depth.depth_range_near ||
depth.depth_range_far != cur_state.depth.depth_range_far) {
glDepthRange(depth.depth_range_near, depth.depth_range_far);
}
}
// Primitive restart
if (primitive_restart.enabled != cur_state.primitive_restart.enabled) {
void OpenGLState::ApplyPrimitiveRestart() const {
const bool primitive_restart_changed =
primitive_restart.enabled != cur_state.primitive_restart.enabled;
if (primitive_restart_changed) {
if (primitive_restart.enabled) {
glEnable(GL_PRIMITIVE_RESTART);
} else {
glDisable(GL_PRIMITIVE_RESTART);
}
}
if (primitive_restart.index != cur_state.primitive_restart.index) {
if (primitive_restart_changed ||
(primitive_restart.enabled &&
primitive_restart.index != cur_state.primitive_restart.index)) {
glPrimitiveRestartIndex(primitive_restart.index);
}
}
// Color mask
if (color_mask.red_enabled != cur_state.color_mask.red_enabled ||
color_mask.green_enabled != cur_state.color_mask.green_enabled ||
color_mask.blue_enabled != cur_state.color_mask.blue_enabled ||
color_mask.alpha_enabled != cur_state.color_mask.alpha_enabled) {
glColorMask(color_mask.red_enabled, color_mask.green_enabled, color_mask.blue_enabled,
color_mask.alpha_enabled);
}
// Stencil test
if (stencil.test_enabled != cur_state.stencil.test_enabled) {
void OpenGLState::ApplyStencilTest() const {
const bool stencil_test_changed = stencil.test_enabled != cur_state.stencil.test_enabled;
if (stencil_test_changed) {
if (stencil.test_enabled) {
glEnable(GL_STENCIL_TEST);
} else {
glDisable(GL_STENCIL_TEST);
}
}
auto config_stencil = [](GLenum face, const auto& config, const auto& prev_config) {
if (config.test_func != prev_config.test_func || config.test_ref != prev_config.test_ref ||
config.test_mask != prev_config.test_mask) {
glStencilFuncSeparate(face, config.test_func, config.test_ref, config.test_mask);
}
if (config.action_depth_fail != prev_config.action_depth_fail ||
config.action_depth_pass != prev_config.action_depth_pass ||
config.action_stencil_fail != prev_config.action_stencil_fail) {
glStencilOpSeparate(face, config.action_stencil_fail, config.action_depth_fail,
config.action_depth_pass);
}
if (config.write_mask != prev_config.write_mask) {
glStencilMaskSeparate(face, config.write_mask);
if (stencil.test_enabled) {
auto config_stencil = [stencil_test_changed](GLenum face, const auto& config,
const auto& prev_config) {
if (stencil_test_changed || config.test_func != prev_config.test_func ||
config.test_ref != prev_config.test_ref ||
config.test_mask != prev_config.test_mask) {
glStencilFuncSeparate(face, config.test_func, config.test_ref, config.test_mask);
}
if (stencil_test_changed || config.action_depth_fail != prev_config.action_depth_fail ||
config.action_depth_pass != prev_config.action_depth_pass ||
config.action_stencil_fail != prev_config.action_stencil_fail) {
glStencilOpSeparate(face, config.action_stencil_fail, config.action_depth_fail,
config.action_depth_pass);
}
if (config.write_mask != prev_config.write_mask) {
glStencilMaskSeparate(face, config.write_mask);
}
};
config_stencil(GL_FRONT, stencil.front, cur_state.stencil.front);
config_stencil(GL_BACK, stencil.back, cur_state.stencil.back);
}
}
void OpenGLState::ApplyScissorTest() const {
const bool scissor_changed = scissor.enabled != cur_state.scissor.enabled;
if (scissor_changed) {
if (scissor.enabled) {
glEnable(GL_SCISSOR_TEST);
} else {
glDisable(GL_SCISSOR_TEST);
}
};
config_stencil(GL_FRONT, stencil.front, cur_state.stencil.front);
config_stencil(GL_BACK, stencil.back, cur_state.stencil.back);
}
if (scissor_changed || scissor_changed || scissor.x != cur_state.scissor.x ||
scissor.y != cur_state.scissor.y || scissor.width != cur_state.scissor.width ||
scissor.height != cur_state.scissor.height) {
glScissor(scissor.x, scissor.y, scissor.width, scissor.height);
}
}
// Blending
if (blend.enabled != cur_state.blend.enabled) {
void OpenGLState::ApplyBlending() const {
const bool blend_changed = blend.enabled != cur_state.blend.enabled;
if (blend_changed) {
if (blend.enabled) {
ASSERT(!logic_op.enabled);
glEnable(GL_BLEND);
@ -197,29 +234,32 @@ void OpenGLState::Apply() const {
glDisable(GL_BLEND);
}
}
if (blend.enabled) {
if (blend_changed || blend.color.red != cur_state.blend.color.red ||
blend.color.green != cur_state.blend.color.green ||
blend.color.blue != cur_state.blend.color.blue ||
blend.color.alpha != cur_state.blend.color.alpha) {
glBlendColor(blend.color.red, blend.color.green, blend.color.blue, blend.color.alpha);
}
if (blend.color.red != cur_state.blend.color.red ||
blend.color.green != cur_state.blend.color.green ||
blend.color.blue != cur_state.blend.color.blue ||
blend.color.alpha != cur_state.blend.color.alpha) {
glBlendColor(blend.color.red, blend.color.green, blend.color.blue, blend.color.alpha);
}
if (blend.src_rgb_func != cur_state.blend.src_rgb_func ||
blend.dst_rgb_func != cur_state.blend.dst_rgb_func ||
blend.src_a_func != cur_state.blend.src_a_func ||
blend.dst_a_func != cur_state.blend.dst_a_func) {
glBlendFuncSeparate(blend.src_rgb_func, blend.dst_rgb_func, blend.src_a_func,
blend.dst_a_func);
}
if (blend_changed || blend.src_rgb_func != cur_state.blend.src_rgb_func ||
blend.dst_rgb_func != cur_state.blend.dst_rgb_func ||
blend.src_a_func != cur_state.blend.src_a_func ||
blend.dst_a_func != cur_state.blend.dst_a_func) {
glBlendFuncSeparate(blend.src_rgb_func, blend.dst_rgb_func, blend.src_a_func,
blend.dst_a_func);
}
if (blend.rgb_equation != cur_state.blend.rgb_equation ||
blend.a_equation != cur_state.blend.a_equation) {
glBlendEquationSeparate(blend.rgb_equation, blend.a_equation);
if (blend_changed || blend.rgb_equation != cur_state.blend.rgb_equation ||
blend.a_equation != cur_state.blend.a_equation) {
glBlendEquationSeparate(blend.rgb_equation, blend.a_equation);
}
}
}
// Logic Operation
if (logic_op.enabled != cur_state.logic_op.enabled) {
void OpenGLState::ApplyLogicOp() const {
const bool logic_op_changed = logic_op.enabled != cur_state.logic_op.enabled;
if (logic_op_changed) {
if (logic_op.enabled) {
ASSERT(!blend.enabled);
glEnable(GL_COLOR_LOGIC_OP);
@ -228,11 +268,13 @@ void OpenGLState::Apply() const {
}
}
if (logic_op.operation != cur_state.logic_op.operation) {
if (logic_op.enabled &&
(logic_op_changed || logic_op.operation != cur_state.logic_op.operation)) {
glLogicOp(logic_op.operation);
}
}
// Textures
void OpenGLState::ApplyTextures() const {
for (std::size_t i = 0; i < std::size(texture_units); ++i) {
const auto& texture_unit = texture_units[i];
const auto& cur_state_texture_unit = cur_state.texture_units[i];
@ -251,28 +293,29 @@ void OpenGLState::Apply() const {
glTexParameteriv(texture_unit.target, GL_TEXTURE_SWIZZLE_RGBA, mask.data());
}
}
}
// Samplers
{
bool has_delta{};
std::size_t first{}, last{};
std::array<GLuint, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> samplers;
for (std::size_t i = 0; i < std::size(samplers); ++i) {
samplers[i] = texture_units[i].sampler;
if (samplers[i] != cur_state.texture_units[i].sampler) {
if (!has_delta) {
first = i;
has_delta = true;
}
last = i;
void OpenGLState::ApplySamplers() const {
bool has_delta{};
std::size_t first{}, last{};
std::array<GLuint, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> samplers;
for (std::size_t i = 0; i < std::size(samplers); ++i) {
samplers[i] = texture_units[i].sampler;
if (samplers[i] != cur_state.texture_units[i].sampler) {
if (!has_delta) {
first = i;
has_delta = true;
}
}
if (has_delta) {
glBindSamplers(static_cast<GLuint>(first), static_cast<GLsizei>(last - first + 1),
samplers.data());
last = i;
}
}
if (has_delta) {
glBindSamplers(static_cast<GLuint>(first), static_cast<GLsizei>(last - first + 1),
samplers.data());
}
}
void OpenGLState::Apply() const {
// Framebuffer
if (draw.read_framebuffer != cur_state.draw.read_framebuffer) {
glBindFramebuffer(GL_READ_FRAMEBUFFER, draw.read_framebuffer);
@ -305,27 +348,12 @@ void OpenGLState::Apply() const {
if (draw.program_pipeline != cur_state.draw.program_pipeline) {
glBindProgramPipeline(draw.program_pipeline);
}
// Scissor test
if (scissor.enabled != cur_state.scissor.enabled) {
if (scissor.enabled) {
glEnable(GL_SCISSOR_TEST);
} else {
glDisable(GL_SCISSOR_TEST);
}
}
if (scissor.x != cur_state.scissor.x || scissor.y != cur_state.scissor.y ||
scissor.width != cur_state.scissor.width || scissor.height != cur_state.scissor.height) {
glScissor(scissor.x, scissor.y, scissor.width, scissor.height);
}
// Viewport
if (viewport.x != cur_state.viewport.x || viewport.y != cur_state.viewport.y ||
viewport.width != cur_state.viewport.width ||
viewport.height != cur_state.viewport.height) {
glViewport(viewport.x, viewport.y, viewport.width, viewport.height);
}
// Clip distance
for (std::size_t i = 0; i < clip_distance.size(); ++i) {
if (clip_distance[i] != cur_state.clip_distance[i]) {
@ -336,12 +364,28 @@ void OpenGLState::Apply() const {
}
}
}
// Color mask
if (color_mask.red_enabled != cur_state.color_mask.red_enabled ||
color_mask.green_enabled != cur_state.color_mask.green_enabled ||
color_mask.blue_enabled != cur_state.color_mask.blue_enabled ||
color_mask.alpha_enabled != cur_state.color_mask.alpha_enabled) {
glColorMask(color_mask.red_enabled, color_mask.green_enabled, color_mask.blue_enabled,
color_mask.alpha_enabled);
}
// Point
if (point.size != cur_state.point.size) {
glPointSize(point.size);
}
ApplyScissorTest();
ApplyStencilTest();
ApplySRgb();
ApplyCulling();
ApplyDepth();
ApplyPrimitiveRestart();
ApplyBlending();
ApplyLogicOp();
ApplyTextures();
ApplySamplers();
cur_state = *this;
}

13
src/video_core/renderer_opengl/gl_state.h
View File

@ -173,7 +173,8 @@ public:
}
/// Apply this state as the current OpenGL state
void Apply() const;
/// Set the initial OpenGL state
static void ApplyDefaultState();
/// Resets any references to the given resource
OpenGLState& UnbindTexture(GLuint handle);
OpenGLState& ResetSampler(GLuint handle);
@ -188,6 +189,16 @@ private:
// Workaround for sRGB problems caused by
// QT not supporting srgb output
static bool s_rgb_used;
void ApplySRgb() const;
void ApplyCulling() const;
void ApplyDepth() const;
void ApplyPrimitiveRestart() const;
void ApplyStencilTest() const;
void ApplyScissorTest() const;
void ApplyBlending() const;
void ApplyLogicOp() const;
void ApplyTextures() const;
void ApplySamplers() const;
};
} // namespace OpenGL
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