atirage: Force redraw if pixel format changes.

Wack0 · dingusdev · commit 625e474c03b2 · 2024-11-08T08:00:43.000-07:00
diff --git a/devices/video/atirage.cpp b/devices/video/atirage.cpp
@@ -396,8 +396,10 @@ void ATIRage::write_reg(uint32_t reg_offset, uint32_t value, uint32_t size) {
             }
         }
 
-        this->regs[reg_num] = new_value;
-        if (bit_changed(old_value, new_value, ATI_CRTC_ENABLE)) {
+
+        if (bit_changed(old_value, new_value, ATI_CRTC_ENABLE)
+            || extract_bits(old_value, ATI_CRTC_PIX_WIDTH, ATI_CRTC_PIX_WIDTH_size) != extract_bits(new_value, ATI_CRTC_PIX_WIDTH, ATI_CRTC_PIX_WIDTH_size)
+        ) {
             draw_fb = true;
             if (bit_set(new_value, ATI_CRTC_ENABLE) &&
                 !bit_set(new_value, ATI_CRTC_DISPLAY_DIS)) {

Original file line number	Diff line number	Diff line change
`@@ -396,8 +396,10 @@ void ATIRage::write_reg(uint32_t reg_offset, uint32_t value, uint32_t size) {`
`396`	`396`	`}`
`397`	`397`	`}`
`398`	`398`
`399`		`- this->regs[reg_num] = new_value;`
`400`		`- if (bit_changed(old_value, new_value, ATI_CRTC_ENABLE)) {`
	`399`	`+`
	`400`	`+ if (bit_changed(old_value, new_value, ATI_CRTC_ENABLE)`
	`401`	`+ \|\| extract_bits(old_value, ATI_CRTC_PIX_WIDTH, ATI_CRTC_PIX_WIDTH_size) != extract_bits(new_value, ATI_CRTC_PIX_WIDTH, ATI_CRTC_PIX_WIDTH_size)`
	`402`	`+ ) {`
`401`	`403`	`draw_fb = true;`
`402`	`404`	`if (bit_set(new_value, ATI_CRTC_ENABLE) &&`
`403`	`405`	`!bit_set(new_value, ATI_CRTC_DISPLAY_DIS)) {`