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GPU: Support dumping copies out to file

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This commit is contained in:
Connor McLaughlin
2019-09-18 15:43:25 +10:00
parent e40ac7cee1
commit d8150c996b
5 changed files with 90 additions and 38 deletions
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41
src/pse/gpu.cpp
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@ -3,9 +3,15 @@
#include "common/state_wrapper.h"
#include "dma.h"
#include "interrupt_controller.h"
#include "stb_image_write.h"
#include "system.h"
Log_SetChannel(GPU);
bool GPU::DUMP_CPU_TO_VRAM_COPIES = false;
bool GPU::DUMP_VRAM_TO_CPU_COPIES = false;
static u32 s_cpu_to_vram_dump_id = 1;
static u32 s_vram_to_cpu_dump_id = 1;
GPU::GPU() = default;
GPU::~GPU() = default;
@ -644,6 +650,12 @@ bool GPU::HandleCopyRectangleCPUToVRAMCommand()
return true;
}
if (DUMP_CPU_TO_VRAM_COPIES)
{
DumpVRAMToFile(SmallString::FromFormat("cpu_to_vram_copy_%u.png", s_cpu_to_vram_dump_id++), copy_width, copy_height,
sizeof(u16) * copy_width, &m_GP0_command[3], true);
}
FlushRender();
UpdateVRAM(dst_x, dst_y, copy_width, copy_height, &m_GP0_command[3]);
return true;
@ -678,6 +690,12 @@ bool GPU::HandleCopyRectangleVRAMToCPUCommand()
for (const u32 bits : temp)
m_GPUREAD_buffer.push_back(bits);
if (DUMP_VRAM_TO_CPU_COPIES)
{
DumpVRAMToFile(SmallString::FromFormat("vram_to_cpu_copy_%u.png", s_cpu_to_vram_dump_id++), width, height,
sizeof(u16) * width, temp.data(), true);
}
// Is this correct?
return true;
}
@ -774,3 +792,26 @@ void GPU::TextureConfig::SetFromPaletteAttribute(u16 value)
palette_attribute = value;
page_changed = true;
}
bool GPU::DumpVRAMToFile(const char* filename, u32 width, u32 height, u32 stride, const void* buffer, bool remove_alpha)
{
std::vector<u32> rgba8_buf(width * height);
const char* ptr_in = static_cast<const char*>(buffer);
u32* ptr_out = rgba8_buf.data();
for (u32 row = 0; row < height; row++)
{
const char* row_ptr_in = ptr_in;
for (u32 col = 0; col < width; col++)
{
u16 src_col;
std::memcpy(&src_col, row_ptr_in, sizeof(u16));
row_ptr_in += sizeof(u16);
*(ptr_out++) = RGBA5551ToRGBA8888(remove_alpha ? (src_col | u16(0x8000)) : src_col);
}
ptr_in += stride;
}
return (stbi_write_png(filename, width, height, 4, rgba8_buf.data(), sizeof(u32) * width) != 0);
}