static int Transpose32BitImage(
uint8_t *p_dst_buffer,
int dst_stride,
const uint8_t *p_src_buffer,
int src_stride,
int src_width,
int src_height) {
int src_aligned_width = src_width & ~0x03;
int src_aligned_height = src_height & ~0x03;
if (src_aligned_width > 0)
for (int src_y = 0; src_y < src_aligned_height; src_y += 4) {
const uint32_t *p_src_row =
reinterpret_cast<const uint32_t *>(p_src_buffer + src_y * src_stride);
uint8_t *p_dst_column = p_dst_buffer + src_y * 4;
for (int src_x = 0; src_x < src_aligned_width; src_x += 4)
Transpose4x4(
reinterpret_cast<uint32_t *>(p_dst_column + src_x * dst_stride),
dst_stride, p_src_row + src_x, src_stride);
}
if (src_aligned_width < src_width)
for (int src_y = 0; src_y < src_aligned_height; ++src_y) {
const uint32_t *p_src_row =
reinterpret_cast<const uint32_t *>(p_src_buffer + src_y * src_stride);
uint8_t *p_dst_column = p_dst_buffer + src_y * 4;
for (int src_x = src_aligned_width; src_x < src_width; ++src_x)
*reinterpret_cast<uint32_t *>(p_dst_column + src_x * dst_stride) =
p_src_row[src_x];
}
for (int src_y = src_aligned_height; src_y < src_height; ++src_y) {
const uint32_t *p_src_row =
reinterpret_cast<const uint32_t *>(p_src_buffer + src_y * src_stride);
uint8_t *p_dst_column = p_dst_buffer + src_y * 4;
for (int src_x = 0; src_x < src_width; ++src_x)
*reinterpret_cast<uint32_t *>(p_dst_column + src_x * dst_stride) =
p_src_row[src_x];
}
return NO_ERRORS;
}
void ShaderManagerDX9::VSSetMatrix(int creg, const float* pMatrix) {
float transp[16];
Transpose4x4(transp, pMatrix);
pD3Ddevice->SetVertexShaderConstantF(creg, transp, 4);
}
