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gl_rasterizer: Implement DrawTriangles.

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This commit is contained in:
bunnei 2018-03-24 03:59:51 -04:00
parent 33c0bf9dc5
commit 0162a2d5cb
1 changed files with 194 additions and 1 deletions
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195
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -197,8 +197,201 @@ bool RasterizerOpenGL::AccelerateDrawBatch(bool is_indexed) {
}
void RasterizerOpenGL::DrawTriangles() {
if (accelerate_draw == AccelDraw::Disabled)
return;
MICROPROFILE_SCOPE(OpenGL_Drawing);
UNIMPLEMENTED();
const auto& regs = Core::System().GetInstance().GPU().Maxwell3D().regs;
// TODO(bunnei): Implement these
const bool has_stencil = false;
const bool using_color_fb = true;
const bool using_depth_fb = false;
MathUtil::Rectangle<s32> viewport_rect_unscaled{
static_cast<s32>(regs.viewport[0].x), // left
static_cast<s32>(regs.viewport[0].y + regs.viewport[0].height), // top
static_cast<s32>(regs.viewport[0].x + regs.viewport[0].width), // right
static_cast<s32>(regs.viewport[0].y) // bottom
};
const bool write_color_fb =
state.color_mask.red_enabled == GL_TRUE || state.color_mask.green_enabled == GL_TRUE ||
state.color_mask.blue_enabled == GL_TRUE || state.color_mask.alpha_enabled == GL_TRUE;
const bool write_depth_fb =
(state.depth.test_enabled && state.depth.write_mask == GL_TRUE) ||
(has_stencil && state.stencil.test_enabled && state.stencil.write_mask != 0);
Surface color_surface;
Surface depth_surface;
MathUtil::Rectangle<u32> surfaces_rect;
std::tie(color_surface, depth_surface, surfaces_rect) =
res_cache.GetFramebufferSurfaces(using_color_fb, using_depth_fb, viewport_rect_unscaled);
const u16 res_scale = color_surface != nullptr
? color_surface->res_scale
: (depth_surface == nullptr ? 1u : depth_surface->res_scale);
MathUtil::Rectangle<u32> draw_rect{
static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.left) +
viewport_rect_unscaled.left * res_scale,
surfaces_rect.left, surfaces_rect.right)), // Left
static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.bottom) +
viewport_rect_unscaled.top * res_scale,
surfaces_rect.bottom, surfaces_rect.top)), // Top
static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.left) +
viewport_rect_unscaled.right * res_scale,
surfaces_rect.left, surfaces_rect.right)), // Right
static_cast<u32>(MathUtil::Clamp<s32>(static_cast<s32>(surfaces_rect.bottom) +
viewport_rect_unscaled.bottom * res_scale,
surfaces_rect.bottom, surfaces_rect.top))}; // Bottom
// Bind the framebuffer surfaces
state.draw.draw_framebuffer = framebuffer.handle;
state.Apply();
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
color_surface != nullptr ? color_surface->texture.handle : 0, 0);
if (depth_surface != nullptr) {
if (has_stencil) {
// attach both depth and stencil
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
depth_surface->texture.handle, 0);
} else {
// attach depth
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D,
depth_surface->texture.handle, 0);
// clear stencil attachment
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
}
} else {
// clear both depth and stencil attachment
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0,
0);
}
// Sync the viewport
state.viewport.x =
static_cast<GLint>(surfaces_rect.left) + viewport_rect_unscaled.left * res_scale;
state.viewport.y =
static_cast<GLint>(surfaces_rect.bottom) + viewport_rect_unscaled.bottom * res_scale;
state.viewport.width = static_cast<GLsizei>(viewport_rect_unscaled.GetWidth() * res_scale);
state.viewport.height = static_cast<GLsizei>(viewport_rect_unscaled.GetHeight() * res_scale);
// TODO(bunnei): Sync framebuffer_scale uniform here
// TODO(bunnei): Sync scissorbox uniform(s) here
// TODO(bunnei): Sync and bind the texture surfaces
// Sync and bind the shader
if (shader_dirty) {
SetShader();
shader_dirty = false;
}
// Sync the uniform data
if (uniform_block_data.dirty) {
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(UniformData), &uniform_block_data.data);
uniform_block_data.dirty = false;
}
// Viewport can have negative offsets or larger dimensions than our framebuffer sub-rect. Enable
// scissor test to prevent drawing outside of the framebuffer region
state.scissor.enabled = true;
state.scissor.x = draw_rect.left;
state.scissor.y = draw_rect.bottom;
state.scissor.width = draw_rect.GetWidth();
state.scissor.height = draw_rect.GetHeight();
state.Apply();
// Draw the vertex batch
GLenum primitive_mode;
switch (regs.draw.topology) {
case Maxwell::PrimitiveTopology::TriangleStrip:
primitive_mode = GL_TRIANGLE_STRIP;
break;
default:
UNREACHABLE();
}
const bool is_indexed = accelerate_draw == AccelDraw::Indexed;
AnalyzeVertexArray(is_indexed);
state.draw.vertex_buffer = stream_buffer->GetHandle();
state.Apply();
size_t buffer_size = static_cast<size_t>(vs_input_size);
if (is_indexed) {
UNREACHABLE();
}
buffer_size += sizeof(VSUniformData);
size_t ptr_pos = 0;
u8* buffer_ptr;
GLintptr buffer_offset;
std::tie(buffer_ptr, buffer_offset) =
stream_buffer->Map(static_cast<GLsizeiptr>(buffer_size), 4);
SetupVertexArray(buffer_ptr, buffer_offset);
ptr_pos += vs_input_size;
GLintptr index_buffer_offset = 0;
if (is_indexed) {
UNREACHABLE();
}
SetupVertexShader(reinterpret_cast<VSUniformData*>(&buffer_ptr[ptr_pos]),
buffer_offset + static_cast<GLintptr>(ptr_pos));
const GLintptr vs_ubo_offset = buffer_offset + static_cast<GLintptr>(ptr_pos);
ptr_pos += sizeof(VSUniformData);
stream_buffer->Unmap();
const auto copy_buffer = [&](GLuint handle, GLintptr offset, GLsizeiptr size) {
if (has_ARB_direct_state_access) {
glCopyNamedBufferSubData(stream_buffer->GetHandle(), handle, offset, 0, size);
} else {
glBindBuffer(GL_COPY_WRITE_BUFFER, handle);
glCopyBufferSubData(GL_ARRAY_BUFFER, GL_COPY_WRITE_BUFFER, offset, 0, size);
}
};
copy_buffer(vs_uniform_buffer.handle, vs_ubo_offset, sizeof(VSUniformData));
glUseProgramStages(pipeline.handle, GL_FRAGMENT_SHADER_BIT, current_shader->shader.handle);
if (is_indexed) {
UNREACHABLE();
} else {
glDrawArrays(primitive_mode, 0, regs.vertex_buffer.count);
}
// Disable scissor test
state.scissor.enabled = false;
accelerate_draw = AccelDraw::Disabled;
// Unbind textures for potential future use as framebuffer attachments
for (auto& texture_unit : state.texture_units) {
texture_unit.texture_2d = 0;
}
state.Apply();
// Mark framebuffer surfaces as dirty
MathUtil::Rectangle<u32> draw_rect_unscaled{
draw_rect.left / res_scale, draw_rect.top / res_scale, draw_rect.right / res_scale,
draw_rect.bottom / res_scale};
if (color_surface != nullptr && write_color_fb) {
auto interval = color_surface->GetSubRectInterval(draw_rect_unscaled);
res_cache.InvalidateRegion(boost::icl::first(interval), boost::icl::length(interval),
color_surface);
}
if (depth_surface != nullptr && write_depth_fb) {
auto interval = depth_surface->GetSubRectInterval(draw_rect_unscaled);
res_cache.InvalidateRegion(boost::icl::first(interval), boost::icl::length(interval),
depth_surface);
}
}
void RasterizerOpenGL::NotifyMaxwellRegisterChanged(u32 id) {}