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authorSubv <subv2112@gmail.com>2015-02-24 00:24:35 +0100
committerSubv <subv2112@gmail.com>2015-02-27 03:17:14 +0100
commitc564c21668912b803947adddc166ff1315b218e4 (patch)
treedf5cf2de4044864e0b6698427d68daacba71937e /src/core/hw/gpu.cpp
parentMerge pull request #612 from yuriks/fix-A4 (diff)
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Diffstat (limited to 'src/core/hw/gpu.cpp')
-rw-r--r--src/core/hw/gpu.cpp82
1 files changed, 61 insertions, 21 deletions
diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp
index e6022d69f..2f1a69d90 100644
--- a/src/core/hw/gpu.cpp
+++ b/src/core/hw/gpu.cpp
@@ -18,10 +18,10 @@
#include "core/hw/gpu.h"
#include "video_core/command_processor.h"
+#include "video_core/utils.h"
#include "video_core/video_core.h"
#include <video_core/color.h>
-
namespace GPU {
Regs g_regs;
@@ -116,24 +116,64 @@ inline void Write(u32 addr, const T data) {
u8* source_pointer = Memory::GetPointer(Memory::PhysicalToVirtualAddress(config.GetPhysicalInputAddress()));
u8* dest_pointer = Memory::GetPointer(Memory::PhysicalToVirtualAddress(config.GetPhysicalOutputAddress()));
- // Cheap emulation of horizontal scaling: Just skip each second pixel of the
- // input framebuffer. We keep track of this in the pixel_skip variable.
- unsigned pixel_skip = (config.scale_horizontally != 0) ? 2 : 1;
-
- u32 output_width = config.output_width / pixel_skip;
-
- for (u32 y = 0; y < config.output_height; ++y) {
- // TODO: Why does the register seem to hold twice the framebuffer width?
+ unsigned horizontal_scale = (config.scale_horizontally != 0) ? 2 : 1;
+ unsigned vertical_scale = (config.scale_vertically != 0) ? 2 : 1;
+
+ u32 output_width = config.output_width / horizontal_scale;
+ u32 output_height = config.output_height / vertical_scale;
+
+ if (config.raw_copy) {
+ // Raw copies do not perform color conversion nor tiled->linear / linear->tiled conversions
+ // TODO(Subv): Verify if raw copies perform scaling
+ memcpy(dest_pointer, source_pointer, config.output_width * config.output_height *
+ GPU::Regs::BytesPerPixel(config.output_format));
+
+ LOG_TRACE(HW_GPU, "DisplayTriggerTransfer: 0x%08x bytes from 0x%08x(%ux%u)-> 0x%08x(%ux%u), flags 0x%08X, Raw copy",
+ config.output_height * output_width * GPU::Regs::BytesPerPixel(config.output_format),
+ config.GetPhysicalInputAddress(), config.input_width.Value(), config.input_height.Value(),
+ config.GetPhysicalOutputAddress(), config.output_width.Value(), config.output_height.Value(),
+ config.output_format.Value(), config.flags);
+
+ GSP_GPU::SignalInterrupt(GSP_GPU::InterruptId::PPF);
+ break;
+ }
+ // TODO(Subv): Blend the pixels when horizontal / vertical scaling is enabled,
+ // right now we're just skipping the extra pixels.
+ for (u32 y = 0; y < output_height; ++y) {
for (u32 x = 0; x < output_width; ++x) {
struct {
int r, g, b, a;
} source_color = { 0, 0, 0, 0 };
+ u32 scaled_x = x * horizontal_scale;
+ u32 scaled_y = y * vertical_scale;
+
+ u32 dst_bytes_per_pixel = GPU::Regs::BytesPerPixel(config.output_format);
+ u32 src_bytes_per_pixel = GPU::Regs::BytesPerPixel(config.input_format);
+ u32 src_offset;
+ u32 dst_offset;
+
+ if (config.output_tiled) {
+ // Interpret the input as linear and the output as tiled
+ u32 coarse_y = y & ~7;
+ u32 stride = output_width * dst_bytes_per_pixel;
+
+ src_offset = (scaled_x + scaled_y * config.input_width) * src_bytes_per_pixel;
+ dst_offset = VideoCore::GetMortonOffset(x, y, dst_bytes_per_pixel) + coarse_y * stride;
+ } else {
+ // Interpret the input as tiled and the output as linear
+ u32 coarse_y = scaled_y & ~7;
+ u32 stride = config.input_width * src_bytes_per_pixel;
+
+ src_offset = VideoCore::GetMortonOffset(scaled_x, scaled_y, src_bytes_per_pixel) + coarse_y * stride;
+ dst_offset = (x + y * output_width) * dst_bytes_per_pixel;
+ }
+
switch (config.input_format) {
case Regs::PixelFormat::RGBA8:
{
- u8* srcptr = source_pointer + (x * pixel_skip + y * config.input_width) * 4;
+ u8* srcptr = source_pointer + src_offset;
source_color.r = srcptr[3]; // red
source_color.g = srcptr[2]; // green
source_color.b = srcptr[1]; // blue
@@ -143,7 +183,7 @@ inline void Write(u32 addr, const T data) {
case Regs::PixelFormat::RGB5A1:
{
- u16 srcval = *(u16*)(source_pointer + x * 4 * pixel_skip + y * config.input_width * 4 * pixel_skip);
+ u16 srcval = *(u16*)(source_pointer + src_offset);
source_color.r = Color::Convert5To8((srcval >> 11) & 0x1F); // red
source_color.g = Color::Convert5To8((srcval >> 6) & 0x1F); // green
source_color.b = Color::Convert5To8((srcval >> 1) & 0x1F); // blue
@@ -153,7 +193,7 @@ inline void Write(u32 addr, const T data) {
case Regs::PixelFormat::RGBA4:
{
- u16 srcval = *(u16*)(source_pointer + x * 4 * pixel_skip + y * config.input_width * 4 * pixel_skip);
+ u16 srcval = *(u16*)(source_pointer + src_offset);
source_color.r = Color::Convert4To8((srcval >> 12) & 0xF); // red
source_color.g = Color::Convert4To8((srcval >> 8) & 0xF); // green
source_color.b = Color::Convert4To8((srcval >> 4) & 0xF); // blue
@@ -169,7 +209,7 @@ inline void Write(u32 addr, const T data) {
switch (config.output_format) {
case Regs::PixelFormat::RGBA8:
{
- u8* dstptr = dest_pointer + (x * pixel_skip + y * config.output_width) * 4;
+ u8* dstptr = dest_pointer + dst_offset;
dstptr[3] = source_color.r;
dstptr[2] = source_color.g;
dstptr[1] = source_color.b;
@@ -179,7 +219,7 @@ inline void Write(u32 addr, const T data) {
case Regs::PixelFormat::RGB8:
{
- u8* dstptr = dest_pointer + (x + y * output_width) * 3;
+ u8* dstptr = dest_pointer + dst_offset;
dstptr[2] = source_color.r; // red
dstptr[1] = source_color.g; // green
dstptr[0] = source_color.b; // blue
@@ -188,7 +228,7 @@ inline void Write(u32 addr, const T data) {
case Regs::PixelFormat::RGB5A1:
{
- u16* dstptr = (u16*)(dest_pointer + x * 2 + y * config.output_width * 2);
+ u16* dstptr = (u16*)(dest_pointer + dst_offset);
*dstptr = ((source_color.r >> 3) << 11) | ((source_color.g >> 3) << 6)
| ((source_color.b >> 3) << 1) | ( source_color.a >> 7);
break;
@@ -196,7 +236,7 @@ inline void Write(u32 addr, const T data) {
case Regs::PixelFormat::RGBA4:
{
- u16* dstptr = (u16*)(dest_pointer + x * 2 + y * config.output_width * 2);
+ u16* dstptr = (u16*)(dest_pointer + dst_offset);
*dstptr = ((source_color.r >> 4) << 12) | ((source_color.g >> 4) << 8)
| ((source_color.b >> 4) << 4) | ( source_color.a >> 4);
break;
@@ -209,11 +249,11 @@ inline void Write(u32 addr, const T data) {
}
}
- LOG_TRACE(HW_GPU, "DisplayTriggerTransfer: 0x%08x bytes from 0x%08x(%ux%u)-> 0x%08x(%ux%u), dst format %x",
- config.output_height * output_width * 4,
- config.GetPhysicalInputAddress(), (u32)config.input_width, (u32)config.input_height,
- config.GetPhysicalOutputAddress(), (u32)output_width, (u32)config.output_height,
- config.output_format.Value());
+ LOG_TRACE(HW_GPU, "DisplayTriggerTransfer: 0x%08x bytes from 0x%08x(%ux%u)-> 0x%08x(%ux%u), dst format %x, flags 0x%08X",
+ config.output_height * output_width * GPU::Regs::BytesPerPixel(config.output_format),
+ config.GetPhysicalInputAddress(), config.input_width.Value(), config.input_height.Value(),
+ config.GetPhysicalOutputAddress(), output_width, output_height,
+ config.output_format.Value(), config.flags);
GSP_GPU::SignalInterrupt(GSP_GPU::InterruptId::PPF);
}