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Merge pull request #3182 from ReinUsesLisp/renderer-opengl

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renderer_opengl: Miscellaneous clean ups
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bunnei 2019-12-16 13:01:04 -05:00 committed by GitHub
commit 65b1b05e05
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2 changed files with 116 additions and 132 deletions
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226
src/video_core/renderer_opengl/renderer_opengl.cpp
View file

@ -24,19 +24,21 @@
namespace OpenGL {
static const char vertex_shader[] = R"(
#version 150 core
namespace {
in vec2 vert_position;
in vec2 vert_tex_coord;
out vec2 frag_tex_coord;
constexpr char vertex_shader[] = R"(
#version 430 core
layout (location = 0) in vec2 vert_position;
layout (location = 1) in vec2 vert_tex_coord;
layout (location = 0) out vec2 frag_tex_coord;
// This is a truncated 3x3 matrix for 2D transformations:
// The upper-left 2x2 submatrix performs scaling/rotation/mirroring.
// The third column performs translation.
// The third row could be used for projection, which we don't need in 2D. It hence is assumed to
// implicitly be [0, 0, 1]
uniform mat3x2 modelview_matrix;
layout (location = 0) uniform mat3x2 modelview_matrix;
void main() {
// Multiply input position by the rotscale part of the matrix and then manually translate by
@ -47,34 +49,29 @@ void main() {
}
)";
static const char fragment_shader[] = R"(
#version 150 core
constexpr char fragment_shader[] = R"(
#version 430 core
in vec2 frag_tex_coord;
out vec4 color;
layout (location = 0) in vec2 frag_tex_coord;
layout (location = 0) out vec4 color;
uniform sampler2D color_texture;
layout (binding = 0) uniform sampler2D color_texture;
void main() {
// Swap RGBA -> ABGR so we don't have to do this on the CPU. This needs to change if we have to
// support more framebuffer pixel formats.
color = texture(color_texture, frag_tex_coord);
}
)";
/**
* Vertex structure that the drawn screen rectangles are composed of.
*/
struct ScreenRectVertex {
ScreenRectVertex(GLfloat x, GLfloat y, GLfloat u, GLfloat v) {
position[0] = x;
position[1] = y;
tex_coord[0] = u;
tex_coord[1] = v;
}
constexpr GLint PositionLocation = 0;
constexpr GLint TexCoordLocation = 1;
constexpr GLint ModelViewMatrixLocation = 0;
GLfloat position[2];
GLfloat tex_coord[2];
struct ScreenRectVertex {
constexpr ScreenRectVertex(GLfloat x, GLfloat y, GLfloat u, GLfloat v)
: position{{x, y}}, tex_coord{{u, v}} {}
std::array<GLfloat, 2> position;
std::array<GLfloat, 2> tex_coord;
};
/**
@ -84,18 +81,82 @@ struct ScreenRectVertex {
* The projection part of the matrix is trivial, hence these operations are represented
* by a 3x2 matrix.
*/
static std::array<GLfloat, 3 * 2> MakeOrthographicMatrix(const float width, const float height) {
std::array<GLfloat, 3 * 2> MakeOrthographicMatrix(float width, float height) {
std::array<GLfloat, 3 * 2> matrix; // Laid out in column-major order
// clang-format off
matrix[0] = 2.f / width; matrix[2] = 0.f; matrix[4] = -1.f;
matrix[1] = 0.f; matrix[3] = -2.f / height; matrix[5] = 1.f;
matrix[0] = 2.f / width; matrix[2] = 0.f; matrix[4] = -1.f;
matrix[1] = 0.f; matrix[3] = -2.f / height; matrix[5] = 1.f;
// Last matrix row is implicitly assumed to be [0, 0, 1].
// clang-format on
return matrix;
}
const char* GetSource(GLenum source) {
switch (source) {
case GL_DEBUG_SOURCE_API:
return "API";
case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
return "WINDOW_SYSTEM";
case GL_DEBUG_SOURCE_SHADER_COMPILER:
return "SHADER_COMPILER";
case GL_DEBUG_SOURCE_THIRD_PARTY:
return "THIRD_PARTY";
case GL_DEBUG_SOURCE_APPLICATION:
return "APPLICATION";
case GL_DEBUG_SOURCE_OTHER:
return "OTHER";
default:
UNREACHABLE();
return "Unknown source";
}
}
const char* GetType(GLenum type) {
switch (type) {
case GL_DEBUG_TYPE_ERROR:
return "ERROR";
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
return "DEPRECATED_BEHAVIOR";
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
return "UNDEFINED_BEHAVIOR";
case GL_DEBUG_TYPE_PORTABILITY:
return "PORTABILITY";
case GL_DEBUG_TYPE_PERFORMANCE:
return "PERFORMANCE";
case GL_DEBUG_TYPE_OTHER:
return "OTHER";
case GL_DEBUG_TYPE_MARKER:
return "MARKER";
default:
UNREACHABLE();
return "Unknown type";
}
}
void APIENTRY DebugHandler(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length,
const GLchar* message, const void* user_param) {
const char format[] = "{} {} {}: {}";
const char* const str_source = GetSource(source);
const char* const str_type = GetType(type);
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH:
LOG_CRITICAL(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM:
LOG_WARNING(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
case GL_DEBUG_SEVERITY_LOW:
LOG_DEBUG(Render_OpenGL, format, str_source, str_type, id, message);
break;
}
}
} // Anonymous namespace
RendererOpenGL::RendererOpenGL(Core::Frontend::EmuWindow& emu_window, Core::System& system)
: VideoCore::RendererBase{emu_window}, emu_window{emu_window}, system{system} {}
@ -138,9 +199,6 @@ void RendererOpenGL::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
prev_state.Apply();
}
/**
* Loads framebuffer from emulated memory into the active OpenGL texture.
*/
void RendererOpenGL::LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer) {
// Framebuffer orientation handling
framebuffer_transform_flags = framebuffer.transform_flags;
@ -181,19 +239,12 @@ void RendererOpenGL::LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuf
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
}
/**
* Fills active OpenGL texture with the given RGB color. Since the color is solid, the texture can
* be 1x1 but will stretch across whatever it's rendered on.
*/
void RendererOpenGL::LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, u8 color_a,
const TextureInfo& texture) {
const u8 framebuffer_data[4] = {color_a, color_b, color_g, color_r};
glClearTexImage(texture.resource.handle, 0, GL_RGBA, GL_UNSIGNED_BYTE, framebuffer_data);
}
/**
* Initializes the OpenGL state and creates persistent objects.
*/
void RendererOpenGL::InitOpenGLObjects() {
glClearColor(Settings::values.bg_red, Settings::values.bg_green, Settings::values.bg_blue,
0.0f);
@ -203,10 +254,6 @@ void RendererOpenGL::InitOpenGLObjects() {
state.draw.shader_program = shader.handle;
state.AllDirty();
state.Apply();
uniform_modelview_matrix = glGetUniformLocation(shader.handle, "modelview_matrix");
uniform_color_texture = glGetUniformLocation(shader.handle, "color_texture");
attrib_position = glGetAttribLocation(shader.handle, "vert_position");
attrib_tex_coord = glGetAttribLocation(shader.handle, "vert_tex_coord");
// Generate VBO handle for drawing
vertex_buffer.Create();
@ -217,14 +264,14 @@ void RendererOpenGL::InitOpenGLObjects() {
// Attach vertex data to VAO
glNamedBufferData(vertex_buffer.handle, sizeof(ScreenRectVertex) * 4, nullptr, GL_STREAM_DRAW);
glVertexArrayAttribFormat(vertex_array.handle, attrib_position, 2, GL_FLOAT, GL_FALSE,
glVertexArrayAttribFormat(vertex_array.handle, PositionLocation, 2, GL_FLOAT, GL_FALSE,
offsetof(ScreenRectVertex, position));
glVertexArrayAttribFormat(vertex_array.handle, attrib_tex_coord, 2, GL_FLOAT, GL_FALSE,
glVertexArrayAttribFormat(vertex_array.handle, TexCoordLocation, 2, GL_FLOAT, GL_FALSE,
offsetof(ScreenRectVertex, tex_coord));
glVertexArrayAttribBinding(vertex_array.handle, attrib_position, 0);
glVertexArrayAttribBinding(vertex_array.handle, attrib_tex_coord, 0);
glEnableVertexArrayAttrib(vertex_array.handle, attrib_position);
glEnableVertexArrayAttrib(vertex_array.handle, attrib_tex_coord);
glVertexArrayAttribBinding(vertex_array.handle, PositionLocation, 0);
glVertexArrayAttribBinding(vertex_array.handle, TexCoordLocation, 0);
glEnableVertexArrayAttrib(vertex_array.handle, PositionLocation);
glEnableVertexArrayAttrib(vertex_array.handle, TexCoordLocation);
glVertexArrayVertexBuffer(vertex_array.handle, 0, vertex_buffer.handle, 0,
sizeof(ScreenRectVertex));
@ -331,18 +378,18 @@ void RendererOpenGL::DrawScreenTriangles(const ScreenInfo& screen_info, float x,
static_cast<f32>(screen_info.texture.height);
}
std::array<ScreenRectVertex, 4> vertices = {{
const std::array vertices = {
ScreenRectVertex(x, y, texcoords.top * scale_u, left * scale_v),
ScreenRectVertex(x + w, y, texcoords.bottom * scale_u, left * scale_v),
ScreenRectVertex(x, y + h, texcoords.top * scale_u, right * scale_v),
ScreenRectVertex(x + w, y + h, texcoords.bottom * scale_u, right * scale_v),
}};
};
state.textures[0] = screen_info.display_texture;
state.framebuffer_srgb.enabled = screen_info.display_srgb;
state.AllDirty();
state.Apply();
glNamedBufferSubData(vertex_buffer.handle, 0, sizeof(vertices), vertices.data());
glNamedBufferSubData(vertex_buffer.handle, 0, sizeof(vertices), std::data(vertices));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
// Restore default state
state.framebuffer_srgb.enabled = false;
@ -351,9 +398,6 @@ void RendererOpenGL::DrawScreenTriangles(const ScreenInfo& screen_info, float x,
state.Apply();
}
/**
* Draws the emulated screens to the emulator window.
*/
void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
if (renderer_settings.set_background_color) {
// Update background color before drawing
@ -367,21 +411,17 @@ void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
glClear(GL_COLOR_BUFFER_BIT);
// Set projection matrix
std::array<GLfloat, 3 * 2> ortho_matrix =
MakeOrthographicMatrix((float)layout.width, (float)layout.height);
glUniformMatrix3x2fv(uniform_modelview_matrix, 1, GL_FALSE, ortho_matrix.data());
const std::array ortho_matrix =
MakeOrthographicMatrix(static_cast<float>(layout.width), static_cast<float>(layout.height));
glUniformMatrix3x2fv(ModelViewMatrixLocation, 1, GL_FALSE, ortho_matrix.data());
// Bind texture in Texture Unit 0
glActiveTexture(GL_TEXTURE0);
glUniform1i(uniform_color_texture, 0);
DrawScreenTriangles(screen_info, (float)screen.left, (float)screen.top,
(float)screen.GetWidth(), (float)screen.GetHeight());
DrawScreenTriangles(screen_info, static_cast<float>(screen.left),
static_cast<float>(screen.top), static_cast<float>(screen.GetWidth()),
static_cast<float>(screen.GetHeight()));
m_current_frame++;
}
/// Updates the framerate
void RendererOpenGL::UpdateFramerate() {}
void RendererOpenGL::CaptureScreenshot() {
@ -418,63 +458,6 @@ void RendererOpenGL::CaptureScreenshot() {
renderer_settings.screenshot_requested = false;
}
static const char* GetSource(GLenum source) {
#define RET(s) \
case GL_DEBUG_SOURCE_##s: \
return #s
switch (source) {
RET(API);
RET(WINDOW_SYSTEM);
RET(SHADER_COMPILER);
RET(THIRD_PARTY);
RET(APPLICATION);
RET(OTHER);
default:
UNREACHABLE();
return "Unknown source";
}
#undef RET
}
static const char* GetType(GLenum type) {
#define RET(t) \
case GL_DEBUG_TYPE_##t: \
return #t
switch (type) {
RET(ERROR);
RET(DEPRECATED_BEHAVIOR);
RET(UNDEFINED_BEHAVIOR);
RET(PORTABILITY);
RET(PERFORMANCE);
RET(OTHER);
RET(MARKER);
default:
UNREACHABLE();
return "Unknown type";
}
#undef RET
}
static void APIENTRY DebugHandler(GLenum source, GLenum type, GLuint id, GLenum severity,
GLsizei length, const GLchar* message, const void* user_param) {
const char format[] = "{} {} {}: {}";
const char* const str_source = GetSource(source);
const char* const str_type = GetType(type);
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH:
LOG_CRITICAL(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM:
LOG_WARNING(Render_OpenGL, format, str_source, str_type, id, message);
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
case GL_DEBUG_SEVERITY_LOW:
LOG_DEBUG(Render_OpenGL, format, str_source, str_type, id, message);
break;
}
}
bool RendererOpenGL::Init() {
Core::Frontend::ScopeAcquireWindowContext acquire_context{render_window};
@ -495,7 +478,6 @@ bool RendererOpenGL::Init() {
return true;
}
/// Shutdown the renderer
void RendererOpenGL::ShutDown() {}
} // namespace OpenGL

22
src/video_core/renderer_opengl/renderer_opengl.h
View file

@ -59,21 +59,31 @@ public:
void ShutDown() override;
private:
/// Initializes the OpenGL state and creates persistent objects.
void InitOpenGLObjects();
void AddTelemetryFields();
void CreateRasterizer();
void ConfigureFramebufferTexture(TextureInfo& texture,
const Tegra::FramebufferConfig& framebuffer);
/// Draws the emulated screens to the emulator window.
void DrawScreen(const Layout::FramebufferLayout& layout);
void DrawScreenTriangles(const ScreenInfo& screen_info, float x, float y, float w, float h);
/// Updates the framerate.
void UpdateFramerate();
void CaptureScreenshot();
// Loads framebuffer from emulated memory into the display information structure
/// Loads framebuffer from emulated memory into the active OpenGL texture.
void LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
// Fills active OpenGL texture with the given RGBA color.
/// Fills active OpenGL texture with the given RGB color.Since the color is solid, the texture
/// can be 1x1 but will stretch across whatever it's rendered on.
void LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, u8 color_a,
const TextureInfo& texture);
@ -94,14 +104,6 @@ private:
/// OpenGL framebuffer data
std::vector<u8> gl_framebuffer_data;
// Shader uniform location indices
GLuint uniform_modelview_matrix;
GLuint uniform_color_texture;
// Shader attribute input indices
GLuint attrib_position;
GLuint attrib_tex_coord;
/// Used for transforming the framebuffer orientation
Tegra::FramebufferConfig::TransformFlags framebuffer_transform_flags;
Common::Rectangle<int> framebuffer_crop_rect;