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GPU: Implemented bits 3 and 1 from the display transfer flags.

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Bit 3 is used to specify a raw copy, where no processing is done to the data, seems to behave exactly as a DMA.
Bit 1 is used to specify whether to convert from a tiled format to a linear format or viceversa.
This commit is contained in:
Subv 2015-02-23 18:24:35 -05:00
parent c7dac73b0c
commit c564c21668
6 changed files with 169 additions and 81 deletions
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39
src/video_core/rasterizer.cpp
View file

@ -7,13 +7,14 @@
#include "common/common_types.h"
#include "common/math_util.h"
#include "core/hw/gpu.h"
#include "debug_utils/debug_utils.h"
#include "math.h"
#include "color.h"
#include "pica.h"
#include "rasterizer.h"
#include "vertex_shader.h"
#include "debug_utils/debug_utils.h"
#include "video_core/utils.h"
namespace Pica {
@ -27,10 +28,14 @@ static void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
// NOTE: The framebuffer height register contains the actual FB height minus one.
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 bytes_per_pixel = GPU::Regs::BytesPerPixel(GPU::Regs::PixelFormat(registers.framebuffer.color_format.Value()));
u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * registers.framebuffer.width * bytes_per_pixel;
switch (registers.framebuffer.color_format) {
case registers.framebuffer.RGBA8:
{
u8* pixel = color_buffer + (x + y * registers.framebuffer.GetWidth()) * 4;
u8* pixel = color_buffer + dst_offset;
pixel[3] = color.r();
pixel[2] = color.g();
pixel[1] = color.b();
@ -40,14 +45,14 @@ static void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
case registers.framebuffer.RGBA4:
{
u8* pixel = color_buffer + (x + y * registers.framebuffer.GetWidth()) * 2;
u8* pixel = color_buffer + dst_offset;
pixel[1] = (color.r() & 0xF0) | (color.g() >> 4);
pixel[0] = (color.b() & 0xF0) | (color.a() >> 4);
break;
}
default:
LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x", registers.framebuffer.color_format);
LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x", registers.framebuffer.color_format.Value());
UNIMPLEMENTED();
}
}
@ -58,11 +63,15 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 bytes_per_pixel = GPU::Regs::BytesPerPixel(GPU::Regs::PixelFormat(registers.framebuffer.color_format.Value()));
u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * registers.framebuffer.width * bytes_per_pixel;
switch (registers.framebuffer.color_format) {
case registers.framebuffer.RGBA8:
{
Math::Vec4<u8> ret;
u8* pixel = color_buffer + (x + y * registers.framebuffer.GetWidth()) * 4;
u8* pixel = color_buffer + src_offset;
ret.r() = pixel[3];
ret.g() = pixel[2];
ret.b() = pixel[1];
@ -73,7 +82,7 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
case registers.framebuffer.RGBA4:
{
Math::Vec4<u8> ret;
u8* pixel = color_buffer + (x + y * registers.framebuffer.GetWidth()) * 2;
u8* pixel = color_buffer + src_offset;
ret.r() = Color::Convert4To8(pixel[1] >> 4);
ret.g() = Color::Convert4To8(pixel[1] & 0x0F);
ret.b() = Color::Convert4To8(pixel[0] >> 4);
@ -82,7 +91,7 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
}
default:
LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x", registers.framebuffer.color_format);
LOG_CRITICAL(Render_Software, "Unknown framebuffer color format %x", registers.framebuffer.color_format.Value());
UNIMPLEMENTED();
}
@ -91,22 +100,28 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
static u32 GetDepth(int x, int y) {
const PAddr addr = registers.framebuffer.GetDepthBufferPhysicalAddress();
u16* depth_buffer = reinterpret_cast<u16*>(Memory::GetPointer(PAddrToVAddr(addr)));
u8* depth_buffer = Memory::GetPointer(PAddrToVAddr(addr));
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 stride = registers.framebuffer.width * 2;
// Assuming 16-bit depth buffer format until actual format handling is implemented
return *(depth_buffer + x + y * registers.framebuffer.GetWidth());
return *(u16*)(depth_buffer + VideoCore::GetMortonOffset(x, y, 2) + coarse_y * stride);
}
static void SetDepth(int x, int y, u16 value) {
const PAddr addr = registers.framebuffer.GetDepthBufferPhysicalAddress();
u16* depth_buffer = reinterpret_cast<u16*>(Memory::GetPointer(PAddrToVAddr(addr)));
u8* depth_buffer = Memory::GetPointer(PAddrToVAddr(addr));
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 stride = registers.framebuffer.width * 2;
// Assuming 16-bit depth buffer format until actual format handling is implemented
*(depth_buffer + x + y * registers.framebuffer.GetWidth()) = value;
*(u16*)(depth_buffer + VideoCore::GetMortonOffset(x, y, 2) + coarse_y * stride) = value;
}
// NOTE: Assuming that rasterizer coordinates are 12.4 fixed-point values