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[Base] Support sign-extension in bitfield

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This commit is contained in:
DrChat
2018-04-14 17:33:24 -05:00
parent d914791afe
commit f8319ec12f
2 changed files with 18 additions and 17 deletions
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11
src/xenia/gpu/vulkan/vulkan_command_processor.cc
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@@ -912,15 +912,8 @@ bool VulkanCommandProcessor::IssueCopy() {
// vtx_window_offset_enable
assert_true(regs[XE_GPU_REG_PA_SU_SC_MODE_CNTL].u32 & 0x00010000);
uint32_t window_offset = regs[XE_GPU_REG_PA_SC_WINDOW_OFFSET].u32;
int16_t window_offset_x = window_offset & 0x7FFF;
int16_t window_offset_y = (window_offset >> 16) & 0x7FFF;
// Sign-extension
if (window_offset_x & 0x4000) {
window_offset_x |= 0x8000;
}
if (window_offset_y & 0x4000) {
window_offset_y |= 0x8000;
}
int32_t window_offset_x = window_regs->window_offset.window_x_offset;
int32_t window_offset_y = window_regs->window_offset.window_y_offset;
uint32_t dest_texel_size = uint32_t(GetTexelSize(copy_dest_format));