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xbox_nv2a.cpp: add simple blitting to show xbox error screen (nw)

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This commit is contained in:
yz70s 2020-04-14 13:41:43 +02:00
parent 757a8c0bed
commit b62a54b7e5
2 changed files with 81 additions and 5 deletions
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16
src/mame/includes/xbox_nv2a.h
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@ -484,6 +484,7 @@ public:
int execute_method_m2mf(address_space &space, uint32_t chanel, uint32_t subchannel, uint32_t maddress, uint32_t address, uint32_t data, int &countlen);
int execute_method_surf2d(address_space &space, uint32_t chanel, uint32_t subchannel, uint32_t maddress, uint32_t address, uint32_t data, int &countlen);
int execute_method_blit(address_space &space, uint32_t chanel, uint32_t subchannel, uint32_t maddress, uint32_t address, uint32_t data, int &countlen);
void surface_2d_blit();
uint32_t texture_get_texel(int number, int x, int y);
uint8_t *read_pixel(int x, int y, int32_t c[4]);
void write_pixel(int x, int y, uint32_t color, int depth);
@ -551,8 +552,8 @@ public:
uint32_t pmc[0x1000 / 4];
uint32_t pgraph[0x2000 / 4];
uint32_t ramin[0x100000 / 4];
uint32_t dma_offset[10];
uint32_t dma_size[10];
uint32_t dma_offset[13];
uint32_t dma_size[13];
uint8_t *basemempointer;
uint8_t *topmempointer;
std::function<void(int state)> irq_callback;
@ -768,6 +769,17 @@ public:
int enabled_vertex_attributes;
int vertex_attribute_words[16];
int vertex_attribute_offset[16];
struct {
int format;
int pitch_source;
int pitch_destination;
uint32_t source_address;
uint32_t destination_address;
int op;
int width;
int heigth;
} bitblit;
emu_timer *puller_timer;
int puller_waiting;
address_space *puller_space;

70
src/mame/video/xbox_nv2a.cpp
View File

@ -3415,7 +3415,10 @@ int nv2a_renderer::execute_method_3d(address_space& space, uint32_t chanel, uint
if (maddress == 0x0100) {
countlen--;
if (data != 0) {
pgraph[0x704 / 4] = 0x100;
#ifdef LOG_NV2A
machine().logerror("Software method %04x\n", data);
#endif
pgraph[0x704 / 4] = 0x100 | (chanel << 20) | (subchannel << 16);
pgraph[0x708 / 4] = data;
pgraph[0x100 / 4] |= 1;
pgraph[0x108 / 4] |= 1;
@ -3922,6 +3925,7 @@ int nv2a_renderer::execute_method_m2mf(address_space &space, uint32_t chanel, ui
#ifdef LOG_NV2A
machine().logerror("m2mf method 0180 notify\n");
#endif
geforce_read_dma_object(data, dma_offset[10], dma_size[10]);
}
return 0;
}
@ -3932,11 +3936,26 @@ int nv2a_renderer::execute_method_surf2d(address_space &space, uint32_t chanel,
#ifdef LOG_NV2A
machine().logerror("surf2d method 0184 source\n");
#endif
geforce_read_dma_object(data, dma_offset[11], dma_size[11]);
}
if (method == 0x0188) {
#ifdef LOG_NV2A
machine().logerror("surf2d method 0188 destination\n");
#endif
geforce_read_dma_object(data, dma_offset[12], dma_size[12]);
}
if (method == 0x0300) {
bitblit.format = data; // 0xa is a8r8g8b8
}
if (method == 0x0304) {
bitblit.pitch_source = data & 0xffff;
bitblit.pitch_destination = data >> 16;
}
if (method == 0x0308) {
bitblit.source_address = dma_offset[11] + data;
}
if (method == 0x030c) {
bitblit.destination_address = dma_offset[12] + data;
}
return 0;
}
@ -3945,17 +3964,62 @@ int nv2a_renderer::execute_method_blit(address_space &space, uint32_t chanel, ui
{
if (method == 0x019c) {
#ifdef LOG_NV2A
machine().logerror("blit method 019c surf\n");
machine().logerror("blit method 019c surface objecct handle %d\n", data); // set to 0x11
#endif
}
if (method == 0x02fc) {
#ifdef LOG_NV2A
machine().logerror("blit method 02fc op\n");
machine().logerror("blit method 02fc operation %d\n", data); // 3 is copy from source to destination
#endif
bitblit.op = data;
}
#if 0
if (method == 0x0300) {
int x, y;
x = data & 0xffff;
y = data >> 16;
}
if (method == 0x0304) {
int x, y;
x = data & 0xffff;
y = data >> 16;
}
#endif
if (method == 0x0308) {
bitblit.width = data & 0xffff;
bitblit.heigth = data >> 16;
surface_2d_blit();
}
return 0;
}
void nv2a_renderer::surface_2d_blit()
{
int x, y;
uint32_t *src, *dest;
uint32_t *srcrow, *destrow;
if (bitblit.format != 0xa) {
machine().logerror("Unsupported format %d in surface_2d_blit\n", bitblit.format);
return;
}
srcrow = (uint32_t *)(basemempointer + bitblit.source_address);
destrow = (uint32_t*)(basemempointer + bitblit.destination_address);
for (y = 0; y < bitblit.heigth; y++) {
src = srcrow;
dest = destrow;
for (x = 0; x < bitblit.width; x++) {
*dest = *src;
dest++;
src++;
}
srcrow += bitblit.pitch_source >> 2;
destrow += bitblit.pitch_destination >> 2;
}
}
bool nv2a_renderer::toggle_register_combiners_usage()
{
combiner.used = 1 - combiner.used;