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GPU: Added the stencil test structure to the Pica Regs struct.

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This commit is contained in:
Subv 2015-03-08 21:31:15 -05:00
parent 155cc80e3b
commit 1248e291f0
7 changed files with 76 additions and 61 deletions
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18
src/video_core/color.h
View file

@ -105,7 +105,7 @@ inline const Math::Vec4<u8> DecodeRGBA4(const u8* bytes) {
* @param bytes Pointer to encoded source value
* @return Depth value as an u32
*/
inline const u32 DecodeD16(const u8* bytes) {
inline u32 DecodeD16(const u8* bytes) {
return *reinterpret_cast<const u16_le*>(bytes);
}
@ -114,7 +114,7 @@ inline const u32 DecodeD16(const u8* bytes) {
* @param bytes Pointer to encoded source value
* @return Depth value as an u32
*/
inline const u32 DecodeD24(const u8* bytes) {
inline u32 DecodeD24(const u8* bytes) {
return (bytes[2] << 16) | (bytes[1] << 8) | bytes[0];
}
@ -181,8 +181,8 @@ inline void EncodeRGBA4(const Math::Vec4<u8>& color, u8* bytes) {
}
/**
* Encode a depth value as D16 format
* @param value Source depth value to encode
* Encode a 16 bit depth value as D16 format
* @param value 16 bit source depth value to encode
* @param bytes Pointer where to store the encoded value
*/
inline void EncodeD16(u32 value, u8* bytes) {
@ -190,8 +190,8 @@ inline void EncodeD16(u32 value, u8* bytes) {
}
/**
* Encode a depth value as D24 format
* @param value Source depth value to encode
* Encode a 24 bit depth value as D24 format
* @param value 24 bit source depth value to encode
* @param bytes Pointer where to store the encoded value
*/
inline void EncodeD24(u32 value, u8* bytes) {
@ -201,9 +201,9 @@ inline void EncodeD24(u32 value, u8* bytes) {
}
/**
* Encode depth and stencil values as D24S8 format
* @param depth Source depth values to encode
* @param stencil Source stencil value to encode
* Encode a 24 bit depth and 8 bit stencil values as D24S8 format
* @param depth 24 bit source depth value to encode
* @param stencil 8 bit source stencil value to encode
* @param bytes Pointer where to store the encoded value
*/
inline void EncodeD24S8(u32 depth, u8 stencil, u8* bytes) {

43
src/video_core/pica.h
View file

@ -393,7 +393,15 @@ struct Regs {
BitField< 8, 8, u32> ref;
} alpha_test;
INSERT_PADDING_WORDS(0x2);
union {
BitField< 0, 1, u32> stencil_test_enable;
BitField< 4, 3, CompareFunc> stencil_test_func;
BitField< 8, 8, u32> stencil_replacement_value;
BitField<16, 8, u32> stencil_reference_value;
BitField<24, 8, u32> stencil_mask;
} stencil_test;
INSERT_PADDING_WORDS(0x1);
union {
BitField< 0, 1, u32> depth_test_enable;
@ -408,6 +416,30 @@ struct Regs {
INSERT_PADDING_WORDS(0x8);
} output_merger;
enum DepthFormat : u32 {
D16 = 0,
D24 = 2,
D24S8 = 3
};
/*
* Returns the number of bytes in the specified depth format
*/
static u32 BytesPerDepthPixel(DepthFormat format) {
switch (format) {
case DepthFormat::D16:
return 2;
case DepthFormat::D24:
return 3;
case DepthFormat::D24S8:
return 4;
default:
LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
UNIMPLEMENTED();
}
}
struct {
// Components are laid out in reverse byte order, most significant bits first.
enum ColorFormat : u32 {
@ -418,16 +450,9 @@ struct Regs {
RGBA4 = 4,
};
enum DepthFormat : u32 {
D16 = 0,
D24 = 2,
D24S8 = 3
};
INSERT_PADDING_WORDS(0x6);
u32 depth_format;
DepthFormat depth_format;
BitField<16, 3, u32> color_format;
INSERT_PADDING_WORDS(0x4);

54
src/video_core/rasterizer.cpp
View file

@ -100,24 +100,19 @@ static u32 GetDepth(int x, int y) {
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 bytes_per_pixel = Pica::Regs::BytesPerDepthPixel(registers.framebuffer.depth_format);
u32 stride = registers.framebuffer.width * bytes_per_pixel;
u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
u8* src_pixel = depth_buffer + src_offset;
switch (registers.framebuffer.depth_format) {
case registers.framebuffer.D16:
{
u32 stride = registers.framebuffer.width * 2;
return Color::DecodeD16(depth_buffer + VideoCore::GetMortonOffset(x, y, 2) + coarse_y * stride);
}
case registers.framebuffer.D24:
{
u32 stride = registers.framebuffer.width * 3;
u8* address = depth_buffer + VideoCore::GetMortonOffset(x, y, 3) + coarse_y * stride;
return Color::DecodeD24(address);
}
case registers.framebuffer.D24S8:
{
u32 stride = registers.framebuffer.width * 4;
return Color::DecodeD24S8(depth_buffer + VideoCore::GetMortonOffset(x, y, 4) + coarse_y * stride).x;
}
case Pica::Regs::DepthFormat::D16:
return Color::DecodeD16(src_pixel);
case Pica::Regs::DepthFormat::D24:
return Color::DecodeD24(src_pixel);
case Pica::Regs::DepthFormat::D24S8:
return Color::DecodeD24S8(src_pixel).x;
default:
LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", registers.framebuffer.depth_format);
UNIMPLEMENTED();
@ -132,28 +127,23 @@ static void SetDepth(int x, int y, u32 value) {
y = (registers.framebuffer.height - y);
const u32 coarse_y = y & ~7;
u32 bytes_per_pixel = Pica::Regs::BytesPerDepthPixel(registers.framebuffer.depth_format);
u32 stride = registers.framebuffer.width * bytes_per_pixel;
u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
u8* dst_pixel = depth_buffer + dst_offset;
switch (registers.framebuffer.depth_format) {
case registers.framebuffer.D16:
{
u32 stride = registers.framebuffer.width * 2;
Color::EncodeD16(value, depth_buffer + VideoCore::GetMortonOffset(x, y, 2) + coarse_y * stride);
case Pica::Regs::DepthFormat::D16:
Color::EncodeD16(value, dst_pixel);
break;
}
case registers.framebuffer.D24:
{
u32 stride = registers.framebuffer.width * 3;
u8* address = depth_buffer + VideoCore::GetMortonOffset(x, y, 3) + coarse_y * stride;
Color::EncodeD24(value, address);
case Pica::Regs::DepthFormat::D24:
Color::EncodeD24(value, dst_pixel);
break;
}
case registers.framebuffer.D24S8:
{
u32 stride = registers.framebuffer.width * 4;
case Pica::Regs::DepthFormat::D24S8:
// TODO(Subv): Implement the stencil buffer
Color::EncodeD24S8(value, 0, depth_buffer + VideoCore::GetMortonOffset(x, y, 4) + coarse_y * stride);
Color::EncodeD24S8(value, 0, dst_pixel);
break;
}
default:
LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", registers.framebuffer.depth_format);
UNIMPLEMENTED();